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Bronica RF 645 User manual

User manual for Bronica RF 645. 44 pages in English. Read the original PDF, download or print a copy without registration.

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Brand
Bronica
Model / document
Bronica RF 645
Document type
User manual
Language
English
Pages
44
File size
3.3 MB
Category
Film cameras
Document date
Not specified in catalog

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Page 3 · Read text
Thank you for your purchase of the Bronica RF645 medium format rangefinder camera. Incorporating the best of Bronica's know-
how and technological expertise, the Bronica RF645 achieves a new dimension in compactness as the world's first medium for-
mat camera to feature interchangeable lenses, and comes with a superb line up of lenses to take full advantage of the rangelinder
camera. The RF645 emploV$ manual film advance lever and dual-image superimposing rangefinder focusing for maximum user
control where  it counts,while enhancing handling ease lvith Program AE, automatic shutter cocking via a motor incorporated  in the
lens unit, and an automatic light shielding curtain to protect film as the lens being removed. This is a camera designed for the max-
imum enjoyment of photography  in mind.
The features and handling procedures described  in this owner's manual are based on use of the Bronica RF645 in combination
with the Zenzanon RF65mm f/4 standard lens. To obtain best results from your new camera, please read this instruction manual
carefully before use. With proper care and handling, the unit will continue to provide pleasure and performance  for many years to
c0me.

 In this package, along with the camera body and the standard lens, you will find the following accessories.
    1)   camera body cap RF (attached to the mount section on camera; remove when mounting a lens),
   2)    sync terminal cover (attached to sync terminal),
   3)    hotshoe cover (attached to hotshoe),
   4)    interchangeable eyepiece lens RF (-1) (attached to viewfinder eyepiece),
   5)    rubber eyecup RF (attached to viewfinder eyepiece),
    6)    protective sheet for light shielding curtain (attached to film aperture of camera. Remove prior to using camera.),
    7)    film take-up spool (installed  in take-up side film chamber),
  8) 1 camera strap RF (N),
  9) 2 CR2 type 3V lithium batteries, and
   10) 1 Owner's Manual (this booklet)
Note:The batteries included are intended for initial use, and the battery  life may not be adequate for normal photographing.  Please
      be prepare to purchase a new set of batteries of the same type to ensure best results

                            www.butkus.us
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Page 6 · Read text
Special Features of the Bronica RF 645
        . A medium format coupled-meter rangefinder camera                         hold and protect internal mechanisms with precision in various, at
                   RF                                                        lightweight         The               Bronica                                                         camera                     645                                          is a very compact                                        and
                                                                larger                         area                                                2.7 times                a picture            with                             approximately                                                              than the                                                   35-mm     * timesRear covereven designadverse,providesoperatingsophisticatedconditions.controls with easy access
            format. The superior portability and versatility of this model com-    .       and handling.
           pared with other medium format cameras ushers in an entirelv new          Switches and dials on the rear cover are grouped together on the
      * Theworldremarkableof photographiclens shutterpossibilities..system                                            tingsrear coverat a glance,for easyan extremelyhandling importantand to enablefeatureconfirmationfor use in the ofhandsset-
         The                                 #00 type lens                                                         shutter                                                      system                                                                       devel-                 electronically-controlled
                                                       precise                                                            speed                                                             shutter          oped                     for the Bronica RF 645 commands                                                                    con-       .  ofShootingserious paramatersphotographers.of the camera are clearly indicated on the
              trol and automatic cocking, as well as aperture control incorpo-            internal viewfinder display panel.
             rated within the shutter unit. The interface between the main cam-        An oversized LCD panel is installed inside the viewfinder to dis-
            era body and the lens are conducted by means of a series of elec-            play constantly updated shooting status data such as shutter speed,
            tronic contacts, resulting in high precision operation compared            lens aperture, AE lock setting, exposure compensation setting, cor-
            with conventional systems operated by mechanical couplers.                  rect exposure setting and exposure deviations  of manually set expo-
                                   lens                                                                        is impressively          The                  highly                    advanced                                                                           stable                                      shutter                                      system
                                               while            free                    caused                                         shock,                                                                                                it ensures                                                                 synchro-                            by shutter                                                                  and     * sureEasy valuesAE lockandmethodso on.with continuous AE lock mem0ry system                of jolts
            '  ticatednization flashwith anphotography.electronic flash at any shutter speed allowing sophis-         Theinto memoryforanAE lock featureextendedof the Bronicatime withoutRF 645cancelingstores anitataexposureshutter valueclick.        .  Automatic light shielding curtain engaged during lens interchange         The metered and stored exposure value can then be modified by the
        A lens shutter camera with interchangeable lens capability would             shutter speed and aperture combination  variations,  or even by com-
           normally require a light shielding curtain to be activated manually           pensating the stored exposure with exposure bracketing technique.
              orior to detachment of the lens. The Bronica RF 645 has made such         Note: Repeated  activation of the AE lock memory may be limited by the remaining battery capacity.
                                                                                                                                          Also,                                                                                                                                          the                                                                                                   AE                                                                                                                                                        lock                                                                                                                    memory                                                                                                                                                                                               will                                                                                                                                          be automatically canceled   if the power  is switched off or                                        unnecessary,                                steps           complex                  and                    awkward                                                   enabling photographerst     "                                                                                                              camera                                                                                                                                                                                     is                                                                                                                             unused                                                                                                                                                                 minutes.                                                                                                                                                                                 left                                                                                                                                                                             lor five            to             focus                                              itself.                                                       with the lens                on                     the shooting                                               In conjunction           detachment  operation,  the light shielding curtain automatically cov-       . The dedicated automatic flash unit that cross-couoles with the
           ers the film aperture and locks into place. When the next lens is        AE setting on the camera
         mounted on the camera, the curtain automatically opens t0 pre-        The dedicated AE flash unit, the Bronica Speedlight RF 20, spe-
        .  pareHi-techthemagnesiumcamera Jor thealloynextThixomoldingshooting.                                               ciallycameradesignedcontrol forsystem.the RF645The unitcamerautilizesbody,the iselectroniccoupled contactswith the
          The top cover of the Bronica RF 645, a lightweight and extremely            of the hotshoe on the camera to transmit and receive lens aper-
           sturdy camera, is manufactured with an advanced Thixomolding            ture values, the aperture control signals and other control data,
           technique. This technology enables a hard and rigid magnesium          enabling the flash unit to compensate for the flash illumination
             alloy to be molded into intricate and complex forms required to          by a half stop within -3 to +2 exposure compensation range.
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Page 10 · Read text
1-1 Loading batteries

                                       tE5
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  The RF645 will not function without bat-       Loosely locked cover may open and        shootino.
  teries loaded.                              droo the batteries in the middle of a     When " ;X'  mark starts to blink on
     '1 ) Appropriate  batteries                      shooting session.                          the LCD, replace the batteries with a
     Load two CR2 type 3-volt lithium bat-     5) Battery checking                      new set.
. I   tery cells.                                        Battery status, the proper battery posi-      Low battery capacity may cause the "
  2) Open battery chamber cover.                  tioning of the loaded Qatteries, and the      camera to malfunction.
      Pull down on the battery chamber lock      remaining battery power;mgst be                lf the LCD does not light up or  it switch-
     release and the cover will swing open.       checked prior to operation of the cam-i       es off shortly after depressing the shut-
  3) Insert batteries.                                   era.                                              ter release button, the batteries must
     Insert two cells of the same brand,        Turn on the main switch and press light-       be replaced with new ones.
'     direction as shown in above drawing,          lyindicatoron the lightsshutterupspeedon thedial.leftAnsideLCDof     andDo notnewusebatteriesdifferenttogether.brands orSuchold
     directing the plus (+) side toward the        the vieMinder  field to indicate the ooer-       improper use of batteries will shorten
     inside chamber.                                 ational status of the camera. As long        battery life and may cause battery leak-
  4) Close the battery chamber cover.            as a "04" mark does not appear on       age or even explosion.
    Close the chamber cover and make        the LCD, the battery is properly loaded
     sure the cover is securelv locked.          and the battery power is sufficient for
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Page 11 · Read text
I
?

fl                                        1-2 Attaching and detaching the lensI
s.





        1-2-1 Atlaching the lens               damages and/or leave stains on vital        Refer to the instruction manual of the
         1) Rotate the rear lens cap of the lens       systems, leading to malfunctioning     45mm lens for more information.
            counterclockwise  about 70'  , and lift         of the camera.                           Note 3: When attaching or detaching lens-
                    it off when it comes to a mechanical    1-2-2 Detaching the lens                    es, do not use excessive force to rotate
             stop.                                     1) Depressing the lens lock release but-        or twist the lens.
          2) Align the lens mounting index on the       ton, rotate the lens barrel counter-     Note 4: Never attempt to detach the lens
            lens barrel with its counterpart on the        clockwise,  until  it comes to a mechan-       while the shutter is open in B (bulb)
          camera body. Place the lens into the          ical end.                                      shooting.
             lens mount on the camera body, and     2) Pull out the lens barrel from the mount     Note 5: This camera employs a lens
           then rotate the lens barrel clockwise         of the camera.                                  shutter, so normally the film would
                until  it clicks to a stop. Make sure the   Note 1 : The 65mm and 135mm        be improperly exposed when chang-
              lens is locked in position before using.         viewf rames in the viewfinder are auto-        ing lenses. To prevent this, a light
          Note: Do not touch the electronic con-        matically switched as the respective        shielding curtain is automatically
               tacts, the rangefinder coupling roller,        lenses are attached.                    drawn out by the lens detaching
            or the light shielding curtain located     Note 2:When mounting the 45mm lens,        action, covering and protecting
           around and behind the camera mount         insert the dedicated vieMinder into the        the film. Do not press or touch this
             section. Contact with these mav cause       accessorywww.butkus.ushotshoe on the camera body.         curtain with fingers or sharp objects.
        I
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Page 12 · Read text
1-3 Attaching strap
         1-4 Attaching the proper diopter adjustment lens





                  Plastic Ring




                                 1-4 Attaching the proper diopterdiopter
                                 adjustment lens
                                               1) A set of nine vieMinder eyepiece lenses
                                              are prepared as optional accessories,
1-3 Attaching strap                       from -5 to +3 diopter, including the nor-
Three camera strap lugs are provided with       mdeyepiece  lens of -1 diopterthatcomes
this camera. To carry the camera in hor-        attached to the camera.
izontal position, attach the strap to the     -5 -4 -3 -2 G1 ) 0 +1 +2 +3upper lugs on both sides. To suspend the       close view *  standard     far viewcamera  in a vertical position, use the upper                        -
and lower lugs on the right side of the     2) Detach the rubber viewfinder cup as
camera body. Follow the procedure illus-      shown above, and slide the standard
trated above to thread the strap through        viewfinder eyepiece lens out from the
the lugs and rings.                             eyepiece frame.
Note: Make sure the strap is properly     3) Replace the proper diopter adjustment
   attached  to the lugs orthe camera may        eyepiece lens by sliding  it into the eye-
   be accidentally dropped.                      piece frame. Attach the rubber eyecup.

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Page 13 · Read text
ilng   shoot   2-1 Gheck battery capacity    2-2 Loading film

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                                                                rX         t      l-

2-1 Gheck batlery capacity                 batteries before the batteries must be    2-2Loading film
The Bronica RF 645 requires a set of       replaced (under Bronica manufactur-       1) Choose a suitable film. The Bronica RF
batteries to function. since the camera         er test conditions).                    645 can take either 120 or 220 tiln
employs an electronically controlled shut-     Note 2: Replace depleted batteries with        type. 120 type of  f ilm with light shield-
ter.                                     new ones as soon as the battery warn-        ing back paper takes 16 frames to a
1) Check the battery level before each        ing mark begins to blink on the LGD.           roll while the220 type without back
   shooting session.                    Low battery capacity may cause the       paper takes 32 frames to a roll.
2)Turn on the main switch and lightly       camera to malfunction.                    To load the film, open the rear camera
   press the shutter release button while     Note 3: lf the LCD does not light up or       cover and set the film type selection
   looking through the viewfinder. The       switches off shortly after depressing        lever to either '120 or 220 position
    battery power is at a satisfactory  level       the shutter release button,  it is time        according  to the film to be loaded. Make
   for shooting  if the LCD on the left        to reolace the batteries with new ones.       sure that the film type display win-
    side of the vieMinder turns on and the                                     dow on the camera back shows the
                               does                                            number you set on the lever.    battery warning p3r.1a" D{   not appear.                                                                    Note 1: Take the cover sheet attached to
Note 1: Approximately 100 rolls ot 120                                                 the film gate section of the camera
   type film can be shot on a fresh set of      www.butkus.us                before loading the very first roll


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Page 14 · Read text
ro





                                            3) lnstallthe film take-up spool in the right
                                        hand film chamber, aligning the key-
                                                   hole of the spool shaft to the key of the
   offilm you use. The cover sheet is pro-        receptor shaft of the camera. Push up       drawing. Ensure that the film leader
   vided to protect the light shielding cur-        the protruding film spool shaft into the        rolls off the outer edge as shown
   tain.                                                                                        . bottom plate of the camera until it locks        instead of the inside edge of the film
Note 2: When loading a film, first attach         into position.                             chamber. The inside black surface of
  a lens on the camera body so that the                                                     the leader must face outward coming
    light shielding curtain opens. This pre-                                                     out of the chamber.  lf  it faces inward,
   caution will protect the light shielding                                                                     roll back the film, turn the roll upside
   curtain from any accidental damage.                                       down and then reload into the film
2) Depress both left and right side film                                            chamber. Push the fresh film spool
   soool shaft lock release buttons with                                                         shaft into the bottom of the camera.
  the camera back ooen. The shafts
   pop downward   f rom the bottom of the
   camera and are identified by red rings.


                                         4) Load a fresh roll of film into the left
                                            hand  f ilm chamber as illustrated  in the
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Page 16 · Read text
,:58
                                        F 1;.^q
                                              A        - W

                                               X


  sure both film shafts are completely        0rocess.
  pressed back into the camera bot-    Film winding and ratcheted urind-
   tom.                               ing lever
Caution: Be careful not to pinch your fin-    The film can be advanced either in one
  ger or hand between the back cover       full stroke of the film advance lever of the
  and the camera body as you open or     Bronica RF 645 or in quick short repeat-
   shut the cover. Be aleft to orevent the    ed strokes. In both cases, the shutter can-
   skin of the hand from being pinched      not be operated untilthe film is completely
   between the back hinge and one of the    advanced to the next frame.  lf advancing
   strap lugs in the rear cover, and to pre-     to the next frame is incomplete, an "X"
  vent the palm from being pinched    mark is displayed on the viewf inder
   between the closing cover and the cam-    LCD.
   era body. Even minor pinching pains     Note: Do not operate the film advance
  may cause you to drop the equip-        lever too quickly. Such forcible han-
  ment and damage  it. As an added        dling may result in skewed film sur-
   precaution, hold the camera  in a secure        face or uneven spacing between pic-
  location during the film loading        ture frames.

                                                                                      14
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Page 17 · Read text
ring to shoot 2-3 Setting film speed        2-4Exposure Gounter

                                                                             advanced to the first  f rame, the exposure
                                                                                  counter displays "'1". The counter indi-
                                                                                        cates all odd numbers with consecutive
                                                                                        numerals and alleven numbers with dash-
                                                                                              es. After '16 pictures shot with 120 type
                                                                                                   film, the film advance lever is released
                                                                                    from frame positioning lock and can wind
                                                                                           continually without stopping. The expo-
                                                                                sure counter advances lo 17, -,19 and
                                                                                 stops only when the films trailing paper
                                                                                                                                         is  f ully wound into the take-up film cham-
                                                                                                         ber. In the case of 220 type film, the rapid
2-3 Setting film speed                  speed setting dial automatically  locks    wind lever is released when the film is
1) To set the film speed, rotate the film        as you reduce pressure on the release     fully used, and the exposure counter
  speed setting dial located on the rear        button.                                  displays  E".
   operational panel by pressing the film    2-4 Gheckthe number on the expo-
  speed setting dial lock release button    sure counter.
   positioned  at the side of the dial.        2-4-l Exposure Gounter
   Adiust the speed number on the dial    The exposure counter resets itselfto the
   to the exposure index number of the     "S" (start) position as the camera back is
   film loaded in the camera. The film     ooened. When the fresh film is loaded and

    lS0 speed 25 32 40 50 64 80 100 125 160 200 250 320 400 500 640 800 1000 12501600
     Film         speed       25 |  |50|   |100I  |200|  |400|  |800|   |1600         scale      dial

                                                                                       33    DIN speed 15 16 17 18 19 nwww.butkus.us21 n n 24 25 26 27 28 29 30 31 32

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@@t
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2-4-2 Film memo holder             wound into the take-up film chamber.       preparation for loading of the next
It may be necessary to reconfirm the type        At that point, all the torque  is removed          roll of film.
of film being used in the heat of a photo       from the film advance action.              Note: When opening the camera rear cover
shooting session. To facilitate this, clip     2) Press the rear cover lock release of the        for film loading and removal, avoid
off the top or bottom flap of the film box       camera upward to open the rear cover.       exposing the camera to direct sunlight.
and insert  it into the memo holder locat-        Press down on the film spool shaft lock       Also, handle films in the shade at all
ed on the rear cover of the camera. Make       release button and push the top o{        times.
sure to replace the film box flap when a       the film spool lightly as illustrated
new roll of film is loaded.                  and remove the spool from the film
2-4-3 How to remoue a used roll       chamber. Hold the film roll so that the
of film.                                                 film's trailing light shielding paper does
1 ) The film advdnce lever will be released       not slacken, and seal the film tightly
  lrom the frame positioning lock mech-        with the adhesive paper band attached
  anism and wind.continually after the        to the film trailing paper.
   16th frame in the case of 120 type film     3) Remove the empty film spool from the
   and the 32nd frame in the case of 220       feeding side film chamber and trans-
   type film, untilthe  trai.ling paper  is fully        fer it to the take-uo film chamber in
          *                  a'_<, ,y,'     f.'                                                                                             16
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Page 19 · Read text
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3-1 Main switch                    3-2-2 Holding the camera                 to obstruct the rangefinder view with
Turn on the main switch and take off the    The Bronica RF 645 is a coupled rangefind-       your fingers or the camera strap.
lens cap to prepare for shooting.              er camera.  lf the view of the rangefinder     3) Taking advantage of a tripod or a mono-
3-2-1 Viewfinder                              is obstructed by a hand or other object,       p0d
1) Check whether the battery warning     the camera cannot focus.                    The difference between sharp pictures
   mark is displayed on the LCD displayed     1) Holding the camera for a vertical com-      and shots blurred by a camera shake
   to the left side in the viewfinder field.         position                                                          is one second away. When using a 100-
   Also confirm that the proper exposure       Hold the camera normally as illustrat-    mm lens. 1/100 sec. is the limitation
   mode, shutter speed and aperture are        ed, and a vertical picture can be pho-         for holding the camera steady. A faster
   set and displayed.                          tographed.                                        shutter speed is strongly recommended
2) Bring your subject into focus in the     2) Holding the camera for a horizontal        for shooting with a medium format
   focusing frame.                          composition                              camera, since this unit is larger and
3)Compose a picture within the       Hold the camera with your right hand        heavier than a 35-mm camera.  lf a
   viewframe.                               and turn the camera 90 degrees as illus-        shutter speed slower than 1/60 sec-
                                                            trated, orienting the camera grip toward       ond is required when using a 65 mm,
                                             the bottom. Rotate the focusing ring        a tripod or monopod  is highly recom-
                                               with www.butkus.usyour left hand, being careful not       mended.

 17
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Page 22 · Read text
3-3 Uiewfinder display
                          3-4 Exposure$ 3-4 $hutter dial and lens aperture operations




CD€+
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                               3-4-1 Shutter dial and lens aper-      settings.
                                 ture operations                    The numerals 1 to 500 on the shutter
                                   Photographing modes and the shutter    speed dial represent shutter speeds or
                                 speeds can be selected on the shutter     exposure times expressed in reciprocals.
                                     speed dial located on the top of the Bronica       In other words, "500" actually means 1i500
                                 RF 645 main camera body. "P" represents    second and "60" is 1/60 second.
                            Program AE mode, "A" designates    The lens aperture can be set by rotating
CD€                                           Aperture-priority AE mode, while "8" indi-     the lens aperture ring. The 65mm lens
g)                                   cates bulb mode, in which the shutter     provides an aperture range of tl4 to 11132.
CD3                               remains open as long as the shutter    Between any two f-numbers, there is an
g)                                          release button is pressed. The shutter dial     intermediate stop. Align an f-number or
J(,                                                  is locked in these three positions to pre-   an intermediate stop with the dis-
                                     vent unintentional changing of the set-     tance/aperture index line to set the aper-CJt33
CDt-                                                ting.                                          ature as required.
v)                                       Press down on the shutter speed dial lock
                                        release button while rotating the shutter
                                                dial betweem these three shooting mode

                                                                                         20
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3-4 Exposures
           ng            3-4 Exposure Control Mode  3-4 Program AE mode

3-4-2 Exposure metering system    and 1/500 sec. shutter speed.                the shutter speed dial.
A light metering sensor located to the side     Note 3: EV levelvaries when any film speed     1) Program AE mode
of the viewfinder objective lens measures     other than lS0 100 is used, or exposure        This is the preferred exposure control
the photographing  area in five indepen-     compensation is applied. For more details,      mode when focusing on the sublect
dent segments and calculates the correct      refer to the diagram on page 35.               without paying too much attention to
exposure by a center-weighted multiple-    3-4-3 Exposure Gontrol mode             detailed camera settings.
field comparative algorithm. The meter-    The Bronica RF 645 provides three expo-      To set this mode, rotate the shutter
ing system calculates the correct expo-    sure control modes: the Program AE      speed dial, depressing the shutter
sure based on the lens's photographing     mode, the Aperture-priority AE mode and       speed dial lock release button, to align
field, the brightness level of the photo-     the manual exposure control mode. Any        "P' mark to an arrow v' on the top
graphic subject, the contrast among     of three exposure control modes men-        cover. In this exposure control mode,
metering segments and miscellaneous     tioned above can be selected and set using         correct shutter speeds and lens aper-
factors to achieve the best photographic
image reproduction. Refer to Figres on                   PROGRAM LINE
page 36 for the metering pattern.                                                                                             ( rs0100, EV3-18  )                                         1
Note 1: The impact on exposure settings
of any filters attached  to the lens must be                                                                                     12
taken into consideration to determine the                                                                                     13
correct exposure when compensating for            AV                                                                                     Aperture                                                                 14
the exposure determined by the external              (4) 4
metering system ol the Bronica RF 645.                                                                                     15                                                                            (s)
Note 2:The metering range of the Bronica                                                                                     16
RF 645 is from EV 3 to EV 18 with the              (6) 8                                                                 17
65mm standard lens at lS0 100. EV 3                (7) 11
 (at lS0 100) is an exposure level desig-                 (8) 16                                                                 18
 nated by a combination of tl4 aperture                                                                                                                              't9
and 2 second shutter speed. EV 18 (at                  (sl 22                                                                 20
 lS0 100) is an exposure  level designat-                  (10) 32
ed by a combination ol tl22 aperture                            www.butkus.us                                                                   Shutter                                                 speed 8                                 1/15 lm 160 1/125 1250 1/500

21
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3-4 Exposures
                                                                    AE modeI                                    3-4 Ex]rosure Gontrol Mode 3-4 Aperture priority                                                   ments. In the event that the photo-
                                                       graphic subject is not well lit, special
 I                                                      attentionmatically selectedmust be shutterpaid to speed,the auto-or
                                                              blurring caused by camera shake may
 I                                                               result. lf the illumination falls outside
                                                       the metering range, both the shutter
                                                   speed and lens aperture displays on
                                                       the LCD flash simultaneouslv.

                                                                                                                                                Aperture priority AE mode  0utside the Shuiler Speed Range          mffinumber is then manually set on the
                                                                                                                   lens aperture ring. For a shallow depth
                                                                                                                              of  f ield to obtain an out-of{ocus back-
                                                                                              ground for portrait photography, select
                                                                                       a small f-number (a large lens open-
                                                                                                                    ing). Alternatively, to photograph the
                                                                                      background in sharp focus for land-
                                                                                                  scape photography, for example, select
                                                                                       a large f-number (a small lens open-
                                                       2) Aperture priority AE mode                       ing).
                                                          This is an automatic exposure control       The Bronica RF 645 controls the expo-t          Program AE mode       0utside the Shuthr Speed Range ru             tures for the desired exDosure are       photographic situations. To set on        stop increments. Carefully observe the {                                          mode applicable to the most variable       sure level in extremely precise 1/12-
              selected and set by the camera's con-        the mode, rotate the shutter speed dial        automatically selected shutter speed
                 trol system.                              while pressing the shutter dial lock        displayed on the LCD in the viewfind-
          The exoosure level is controlled in        release button, and align "A" mark to        er when the subject area is compara-
            extremely precise 1/12-stop incre-        the arrow "V" on the top cover. An f-         tively dark.  lf a slow shutter speed that

                                                                                              22
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3-4 Exposures
           ing            3-4 Exbosure Control Mode 3-4 Manual Exposure Gontrol

  may result in camera shake is shown,
  precautionary measures should be             5EE         tE5
  taken such as mounting the camera on                    E                          LIf, .L't1  a tripod or placing the camera on a sta-
  ble deck or against a wall, to avoid pick-                 M           M
  ing up such vibration and consequent
   blurring.
  To compensate for an automatically
  determined exposure, please refer to
  the articles 3-4-4 Exposure c0mpen-
   sation and 3-4-5 AE lock.  lf proper shut-                                    Manual exposure (2EV under)            Correct exposure
  ter speed cannot be selectdd for the
  manually set f-number due to sublect     3) Manual exposure control                 the camera body. LightlY Press the
   brightness  that is out of metering range,        This exposure control mode is partic-         shutter release button and an 'M" mark
  the shutter speed display on the LCD         ularly importantto those serious pho-        with the set shutter speed and a numer-
  flashes.                                     tographers who intentionally determ ine         al that indicates the deviation of the
                                                     specific shutter speeds and lens aper-       manually set exposure level from the
                                           tures in order to Produce creative       metered exposure will appear on the
                                            images. The Bronica RF 645 with its     LCD panel in the viewfinder. Note:
                                           extremely precise electronic shutter       The exposure deviation indication  is a
                                         speed and lens aperture control sys-        numerical expression of the difference
                                         tems makes an ideal manual exposure       between the manually set exposure
                                                control camera.                                  level determined by the combination
                                      To set the manual exposure control        ofthe set shutter speed and the f-num-
                                    mode (from "P" or'A' modes), rotate        ber and the exposure level determined
                                            the shutter speed dial while pressing        by the camera's metering and correct
                                                    the shutter speed dial lock release, and        exposure calculation system. The expo-
                                              align the desired setting  f rom the       sure deviation  is indicated in 1/2 stop
                                                                                                                                                                       "0"                                        numeralswww.butkus.us1 to 500 (1 to 1/500 sec.)        increments up to + 3 stops. When
                                              with the arrow "v" mark on the top of         is displayed there is no difference
23
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Page 27 · Read text
3-4 Exposurs$ 3-5 Focusing

                                            1) Press the AE L button for the second
                                                   time,
                                            2) change the shooting mode on the shut-
                                                     ter speed dial, or
                                               3) turn off the main switch of the cam-
                                                        era.
                                            Note:  lf the camera is left unused for ftve
                                      mtnutes continuouslY, the AE lock
                                     mem0ry will be automatically cleared.


3-4-5 AE lock
The AE lock system is a useful tool to
obtain the correct exposure 0n a limited
portion of the subiect area. Close in on
the subject and point the camera toward                                     3-5 Focusing
the area where the exposure must be cor-                                         The Bronica RF 645 is a coupled-meter
rectly metered, then press the AE L but-                                               rangeflnder camera in which focus is
ton. The metering system of the camera                                                  achieved by superimposing two viewfind-
stores the brightness  level of that partic-                                                 er images obtained by two independent
ular portion of the subject and displays                                                   rangefinder windows.
an "AL" symbol on the LCD panel. The                                                 1) Point the camera toward the subject
AE L button does not need to be pressed                                                   so that the focusing portion of the sub-
                                                                                                                ject fits into the focusing frame of the continually to maintain the metered expo-
 sure. The camera stores this metered                                                         viewfinder. When the subject is not in
 brightness level for five minutes. To                                              sharp focus, two PoorlY contrasted,
 cancel the meter reading in memorY,                                                                      partially overlapped images will be seen
                                                                                                                in the focusing frame. choose one of the actions described below.       www.butkus.us

 25
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Page 29 · Read text
leature$                 Multiple
                           tEti
                                      l= 5.8
                      ;)+.i
                                                                                                                                                                                                                                                                                                                                                      ,l'   NM       l-ffi
4-1 Multiple exposure                                  Multiple exposure Indicatrion                  ME button does not work
This feature enables the camera to expose       as desired on one picture frame. Note         film advancing. This will cause incor-
multiple images 0n one picture frame.           1: The ME button electronically can-         rect film winding and cause a partial-
(1)Firstly, take an image that forms the         cels out the shutter release button lock          ly overlapped picture.
   base of multiple exposures.                 system. Five second after pressing the    Note 4: The ME button may be activated
(2)Looking through the viewfinder, make     ME button, the canceling effect of the      when the camera is operated without
   sure the LCD panel is activated. Then     ME button will be cleared, the shutter        loading a roll of film. 0ne depresston
   press the ME button on the back of the       button will be locked, and the LCD       on the ME button enables the camera
   camera. Note: The ME button does not          will switch off once again.                    to operate its shutter just one time.
   work  if pressed while the LCD Panel     Note 2: There is no exposure compensa-
     is not active. Press the shutter release         tion feature in the Bronica RF645 for
   button lightly and oPerate the ME        multiple exposure mode.
    button while the LCD is active.                Multiple exposure therefore results in
 (3)The second image is exposed on the       overexposure. Exposure must be cal-
   same picture frame as the shutter but-        culated by the photographer  in accor-
   ton is clicked. Repeat (2) and (3) con-       dance with image composition. Note
    secutively to take as many exposures        3: Dowww.butkus.usnot press the ME button during

27
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Page 32 · Read text
eatures      4-4 Long exposure photography 4-b Inlrared photography

   The set lens aperture and the proper    4-4 Long exposure photography
   photographing  distance range dis-    The longest nominal shutter speed of        [[[   played on the LCD panel of the     the Bronica RF 645 is eight full seconds.
   Speedlight RF 20 are very useful in         lf a longer exposure  is required, set the
   determining the manually controlled     shutter speed dial on bulb ("8"). The elec-            7l
   flash exposures.                             tronically control shutter system of the                              fi{'W
                                                        22 rerr a\l     Ra1"l ,5  224). OtherExposureelectroniccompensation:flash featuresThe flash    powerBronicaat RFone645secondstopsafterconsumingthe shutterbatteryclick
   exposure of the Speedlight RF 20 can       in bulb operation in order to conserve bat-      3222 16 11                                                           ilYffi   be compensated from -3 to +2 stop in      tery. Still, it is strongly recommended to   1/2-stop increments according to the     carry backup battery cells if repeated long       g
.  subject'sBacklit LCD:ref lectivity.For insufficient lighting,     exposuresNote 1:The arevieMinderanticipated.LCD displays"BUL"    4-5 lnlrared Photography
   the LCD panel of the Speedlight RF       as the shutter dial is set on '8".        To photograph with a monochrome
  20 can be illuminated from the back     Note 2: Never try to remove the lens  f rom     infrared film, follow the procedures
                                                                                       described                                                                                                  below.* forllluminationbetter le.gibianglelity. adjustment:: Two        the camera during a long exposure.                                                                                     (1)Focus normally.                                                                                                 Note the location on
   illumination angles for the 65 mm lens,                                                 the distance scale corresponding to
  the normal illumination angle, and                                                 the distance scale index line.
   the 45mm lens, the wide illumination                                                       (2)Rotate the focusing ring slightly to shift
   angle, are provided with the Speedlight                                                 the focus point to the marked point
  RF 20.                                                                                        with the "R" symbol adjacent to the dis-
Note: The illumination range of the                                                  tance index line.
   Speedlight RF 20 is a verticatty-ori-                                                    (3)Attach an infrared filter on the lens and
  ented rectangu  lar area.                                                                     shoot. Note: For more details, refer to
                                                                                       the infrared film instructions.
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Page 33 · Read text
eatures               4-6 Depth of Field

                                                                f/8. The depth of field range of approx-
                                          imately 2.5 to 4 meters is lound
                                      between the pair of f/8 lines on the
 HHHHlffifi''fift.UHHHH        depth of  f ield scale. The subiects with-
                                                     in these two distances will be Pho-     7'"oi3i3@
                                            tographed in sharp focus. 0n the depth
                                                          of field table of the 65mm lens on page
32 22 1611 14 |  ngrr re 22            32, the box located where the hori-
                                                  zontal line for 3 meters and the verti-   322216 11 8 5.6 1                                                 cal column for f/8 intersect includes
       Depth-of{ield range                                             the distance range corresponding to               at F/B                                                    the deoth of field of 252t0 3.71 meters.
4-6 Depth of Field                     Note: The depth of field tables other
Since the Bronica RF 645 is a coupled       than the 65mm lens are Printed on
rangefinder camera comprising separate        the instruction manual of each lens.
shooting and viewfinder optical systems,
the sharp focus range is not directly dis-
played in the vieMinder. The depth of field
must therefore be read from the depth
of field scale on the lens, or calculated
from the depth of field table on page 32.
(1)To read the depth of field on the lens,
   focus on a subiect, then read two dis-
   tances on the distance scale between
   the pair of depth-of-field lines corre-
   sponding to the f-number set on the
   aperture ring. In the illustration above,
    the 65mm lens is focused on a subiect
    at 3 meters with its aPerture set at       www.butkus.us

 31                                                                                                                                                                                                                                                                         j
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Page 35 · Read text
Troubleshooting
Betore taking your camera  in for repairs, check your camera  referring  to the following table

When photographing
 What's haDoeninq            Viewtinder LCD       Cause ol trouble              Means to solve               How to oDerate
 Shutter release button       No LCD indication      Batterv drained                 Load new batteries,
 depressed  lightly but LCD                           lmorooerlv loaded  batteries.      Prooerlv reolace batteries,
 doeq nnt lioht                                 Main switch turned 0FF        Turn 0N main switch
                                            Shutter speed LC0 flashing   Beyond exposure control range   Change J-number  setting       When dark: 0pen aperture to smaller lnumber,
                                                                                             When brioht: Close aperture down to laroer f-number
                              Aperture & shutter    Beyond metering range,
  Flashing LCD warning        speed tlashing         Subiect too dark,                Too dark: Use ohoto lamo, flash unil
                                                         Subiect too brioht             Too brioht: Use ND filter          Adiust exDosure bv ND tilter factor
                                    Betlerv mark flashino    Batterv drained                 Load new batteries
                                               'P, A, or M'mark  llashinq    Camera  set on lnllltiole exoosure  (ME) mod(   Cancel ME mode                  Press on ME butlon
                       AL mark indication    Camera in AL lock mode         Cancel AE lock mode               Press AE L button lor second  time, Turn OFF main switch,
                                                                                                  after shooino in this mode       Chanoe exDosure control mode.
                                   "X" mark indication    Camera temporarily inoperable,
 Warning indications                                    Film not wound to next trame,                             Wind raoid wind lever to end.                               .t,                                           No film loaded,                 Load lilm,                     Use ME button for camera check without film,         \
                                                   Lens not mount properly        Replace lens correctly           Check  if lens lock release button in original position   n
                                                                                                                                         after lens mountinq.                    a;                         No LCD indication      Batterv exhausted,              Load new batteries.
                                                   Main switch turned 0FF         Turn main switch 0N.                                                                                                \                                       "X" mark flashing     Camera temporarily inoperable,
  Shutter does not click                                  Film not wound to next frame,  Wind film,                   Wind raoid wind lever to end,
                                           No film loaded,                 Load Jilm.                     Use ME button for camera check without film,
                                                   Lens not mount properly                                      Check  if lens lock release button in original position    f,
                                               Cause o{ trouble                Reolace lens correctlv              after lens mountino.
                         No LCD indication     lnJinder LCD not activated.      Press shutter release bufton
 ME button does not work.                                                              again to activate LCD panel.        ln-finder LCD turns itself off 6 sec. atter shutter
                                                                                                                                  release button depression  for saving energy.

   Selftimer does not work                             Shutter dial set on "8"          Change shutter dial position.
                            www.butkus.us

 33
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From the M. Butkus archive. Original publisher and archive notices are retained.
Check the model and edition against your equipment.

PDF verified 2026-10-10.