PETRI MF-3 User manual

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F;N(; I,'SH
Welcome to the excitrng world of PETRI You new camera is one of a fanrily of professional
serious photographer in mind. And the name PETRlis your@ quality cameras designed with the assurance of superbly crafted optics and outstanding mechanical performance and reliability.

t,l:t 'fs('H
Wir begrLifien Sie in der aufregenden Welt der PETRI. lhre neue Kamera gehort zur Famrlie der
professionelleri Oualitatskameras, die unter Berr.icksichtigung cler Ansprtiihe ernsthafter Foto-@ grafen entwickelt wurde. Der Markenname pETRI ist lhre Gewahr fur riberragende Optik,
hervorragende Technik uncl Zuverlassigkeit.

I.'RAN('AIS
Bienvenue dans le monde passionnant de PETRl.Votre nouvel appareil photographique est un
@ modelele nomdedela PETRIfamille desest appareilspour vousde l'assurancequalit6 professionelle,d'une optiqueconcu superbementpour le photographetravaillee,averti.d'uneEt
performance m6canique remarquable, et d'une robustesse insurpassable.

ITAI.IAN0
Benvenuti nel mondo eccitante della PETRI . La Vostra nuova macchina fotografica fa parte di
fn una famiglia di macchine di qualitd professionale studiate tenendo presente lJesigerrze'del piu\y serio {otografo. Ed il nome PETRI d l'assicurazione di un'ottica superbamente cbstruita, e di prestazioni mecqaniche eccezional i.

l-;s t,ANr)1.
Bienvenido a'l mundo emotionante de la Su nueva camara pertenece a una familia de cdmaras de
A\:' calidadY el nombreprofe'sionalPETRIqueeshansu srdogarqntfadisefradasde opticapensandoespl6ndidamenteen el fotografofabricadaserio. y de funcionamiento
mecanico destacado y de precisi6n',.*

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Venmo @mike-butkus-camera  Ph. 2083
PayPal Name  Lynn@butkus.org      www.PayPal.me/lynnbutkus

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E.  Description of Controls
      1. Exoosure Counter Window
     2. Film Advance Lever
      3. Shutter Speed Index
     4. Film Rewind Button
      6. Shutter Speed Dial
     7. Film Speed ASA Window
     B. Hot Shoe
     9. Film Plane Reference                                      www.butkus.us
    10. Main Switch
    11. Film Rewind Knob
    12. Film Rewind Crank
    13. Lens Flange
               'l 4. Aperture Ring
    15. Aperture/Distance Scale lndex Line
    16. Depth of Field Scale
    17. Focusing Ring/Distance  Scale
    18. lhfrared Mark
    19. Shutter Release Button
    20. Lens Mount Release Button
     2'1. Selftimer LED
    22. Removable Door Hinge
    23. Cable/Remote Release Socket            3i. Film Advance Sprocket
    24. Carrying Lugs                           32. Film Take-up Spool
    26. "X" Sync PC Outlet                    33. Film Pressure Plate
    27. Film Chamber                            36. Tripod Socket
    28. Film Ape_rture                          37. Battery Compartment Cover
    29. Viewfinder                             38. Auto-winder Coupler
    30. Film Guide Rails                        39. Back Cover

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LFa-
With the f ilm rewind crank in the folded our SETTING FILM SPEED positron, rewind the f ilm slightly to remove
any slack in the film cassette. Recheck to For properly exposed photographs. your MF-3's
see that the film remains secured to the electronically controlled metering system must DIN take-up spool and that it is properly aligned be set for the correct ASA (or DIN - for
with the Sprocket (31). Fold down rewind equivalents,) rating of film you are using.
cran k. To set the f ilm speed:
6. Close the Back Cover (39) until you hear an 1. Lift the col lar on the Shutter Speed Dial
audible click, which indicates that the cover (6).
is locked in the closed position. Advance the 2. Turn the col lar until the ASA rating for
film by alternately winding the advance your fi lm appears in the ASA Window.
lever and pressing the shutter release button (Fis.4)
until the number "1" appears in the Film 3. Release the collar to lock the settinq in Counter Window (1). As the advance lever is ptace.
wound, the film rewind knob should rotate,
indicating that the film is advancing pro-
peny.

Fis2 Fis3 Fig4

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www.butkus.us (DSHUTTER SPEED SELECTION
The MF-3 has a shutter speed range of 4 seconds +oK-to 111000 second, plus "8" (Bulb) for Time
Exposures. To set the shutter speed. turn the
shutter speed dial until the ciesired shutter
speed is aligned with the Shutter Speed lndex
(3). When using shutter speeds lrelow 1/30 of a
second, it is a.dvisable to use a tripod and a
cable release or the dxclusive remote control ler
to eliminate the possibility of vibration due to Fis5
the camera movement. The MF-3 is equipped
with a threaded Cable Release Socket (23) and
Triood Socket (36) for use with these acces- FOCUSING THE CAMERA
son es. Your MF-3's focusing screen includes a central
horizontal split-image rangefinder, which is
TIME EXPOSURES surrounded by a microprism collar' (Fig.5)
When making time exposure photographs, your To focus accuratelY:
camera should always be tripod-mounted and 1. Center the split-image rangefinder on your
used with a locking cable release. The MF-3's key subject and turn the Focusing Ring ('17)
electronic shutter is capable of time exposures until the upper and lower portions of your
of up to 4 seconds. subject become one, clear vertical image. 2. The surrounding microprism collar will a)
For the time exposures of over 4 seconds in appear f ragmented when the image is
duration: . entirely out of f ocus, b) appear shimmering
1. Align "8" setting on shutter speed dial with but viewable when image is nearly in focus
the shutter speed index. and c) appears clear when your subject is in
2. Advance the film and press in on tip of focus. lt is especially useful when there are
cable release to open the shutter. Turn the I no pronounced vertical lines on your sub-
cable release lock to hold shutter open. i. ject, making the use of the horizontal, split3. Af ter the desired exposure time in seconds 1,.', image rangefinder difficult'
has elapsed, release the cable release lock to
close the shutter.

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e 3. The entire focusing screen may be used for turnecl to the direction the (+) illum-
both focus and composition of your photo- ination or the shutter spee<l dial shoulcl be
graph. The human eye tends to ignore minor turned to the opposite drrection until ttre
differences in sharpness. Therefore, the hori - OK signal lamp lights.
zontal split image rangefinder and/or the 8. The proper exposure of f ilm is obtaineci
microprism collar should always be used for whenever the OK signal lamp lighrs. The
critical focus when possible. range that the OK signal lights is 0.3 EV.
is METE R ING SYSTEM When a certain aperture size (F-stop number) desired because of the depth of field effect Your MF-3 has the open-aperture, TTL center- (refer to the next paragraph), set the desired
weighted average, match LED metering system. F-stop first and turn the shutter speed dial until
Setting the exposure: the OK signal illuminates.
1. Advance the fi lm. NOTE: When both red LEDs illuminare. you
2. Set the Main Switch (10) to "ON". (Fig.6) have gone beyond the cameras metering range
3. Select a desired shutter speed by rotating and should, if possible alter the aperture so that
the shutter speed dial. a different speed can be used.
4. Depress the shutter release button quite
slightly so that one of the LED indicators in
viewfinder illuminates. ( F ig.7)
5. The LED indicators will tell you whether
the present setting is over, under or correct Fis6
exposure.
6. When the red warninq lrght (+) lights rt rs
meanrng of Over-exposure. In this case the
rl iaphragm ring of the taking lens should be
turneLi to the (-) illumination or the
shutter speed clial shoulcl be turned tcl a
Iri-oher speeri until rhe OK signal lamp
ligh ts.
I. When the red warning larnp ( )lights, it is
meanirrg of Under-exposure. In this case the
riiaphragm ring of the taking lens should lre FigT

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www.butkus.us (e)DEPTH OF FIELD SELFTIMER
The aperture setting determines the near ancl The self timer delays the tripping of the shutter
far areas in which items other than your key mechanisrn for approximately 10 seconds,
subject will remain acceptably sharp. This allowing you to include yourself in the photo-
"zone of focus" is refered to as depth of field. graph when desired. The timed delay function
Your lens features a depth of Field Scale (16). is f ully electronic, with a selftimer LED display-
which allows you to select the zone of focus ing the lapsed time. The camera should be
which will apear in the final photograph. tripod-mounted or placed on a fi rm support
(Fig.9) when -this feature is used.
Under normal lighting conditions, selecting a activate the selftimer:larger aperture opening (eg: F2.B or F4) will To photograph. Focus and compose 1.allow you to keep your key sub.ject in sharp 2. Adjust controls for correct exposure dis-focus while putting distracting elements in out plav.of focus the foreground or background of your 3. Turn the main switch lever to "SELF"photograph. Under same conditions, selecting a position. (Fig.12)snraller aperture opening (eg: F 1 1 or F 16) wi ll 4. Press the shutter release button.bring both near and distant objects in focus. 5. Position yourself in photograph area within(Fis.10& 11) 1 0 seconds.
Frnl O NOTE: lf you decide not to use the selftimer ' 'r'v after setting it, turn back the lever to the
original pori'tion. Also after photographing with
selftimer, turn back the lever to "ON" or
"OFF" position unless you indend to take the Finl 1 ' 'Y' ' hext one with selftimer.
Mount the eyepiece cover (inserted in hot shoe)
on the eyepiece whenever you photograph
without looking through the viewf inder.

10 Fig9 Fre12

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www.butkus.us ?3qI @ FOR YOUR CAMERA open the camera back. The fi lm counter will CARING
automatically reset to zero. 1. Never force any camera operation. Consult4. Remove the exposed cassette for processing. this instruction manual if any questions Insert a f resh roll of film while the camera occur.
back is still open, or close the back for 2. Remove batteries when storing camera.
srorage. Batteries can leak as they age, causing
NOTE: Do not load or unload your camera damage to your camera. Always inspect the
under direct sunlight. batteries for signs of leakage before install-
ing them in your camera.
3. Keep the lens cap on when not taking photographs. The cap protects your lens
f rom dust or dirt Particles.
4. Clean your camera's interior. Periodically
remove any dust or film particles from the
film chamber, rear lens element, take-up
spool area or film pressure plate with an air
blower. Inspect f ilm pressure plate f or
accumulated deposits from film backing,
Frg'l 3 and clean with lens cleaner and tissue if
required.
5. Keep your camera and film awaY from
direct sunlight or heat. Never store your
camera or film on the rear window deck,
glove compartment or other hot areas in
your car.
6. Protect your camera fr.om moisture. Do not
store Vour camera in a moisture-retaining
enclosure or environment. In areas of high
humidity, extra care should be taken to
insure that your camera is kept in a com-
paratively cool , drY location.
7. Do not touch shutter curtain. 12

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@ SPECIFIEATIONS                                    J
     Camera Type:      35mm electronic single lens reflex camera with TTL, open-aperture,     1
                           exposure balance system                                                                              1
     Film Format:       24mm x 36mm
     Lens Mount:        K type bayonet mount                                                                                                {
                                          Ff ange back focus distance: 45.44mm                                                                                       1
     Shutter:               Magnetically controlled cloth curtain focal plane shutter with shutter speed  1j
                          from 4 to 1l1oO0 sec. and B (Bulb) Ftash (X) synchronisation at 1/60 sec.
                           Electrically controlled selftimer of 10-second duration with flickering
                         lamp
     Viewfinder:           Fjxed pentaprism type                                 $,.                             Magnification: 1 X (with f355mm lens)
                             Dioptre: -0.9                              Field of view: 93% for both horizontal and vertical Focusing wi th horizontal
                               split-image center with surrounding microprism col lar on matt  f resnel screen
                             Informations: Optimum, over and underexposures.
     Metering System:     TTL, open-aperture, match LED metering system. Avegage metering (cent-
                           erweighted)                                                                                              1OO)                                     with two CdS cell metering range: EV2 - EV19 (ASA     Film Speed range:                   ASA 25   3200                                      -     Film Advance:         135" rotation of wind lever with standoff angle of 3Oo
     Shutter Relece:         Electrically controlled solenoid switch
     Film Counter:           Progressive type
                          Automatically resets when camera back is opened.
    Power Source:        2 X 5-76 (or MS 76 or G 13) 1.S-Volt silver oxide battery
                            Battery test with LEDs in viewf inder
     Rear Cover:          Removable hinge type
     Dimensions:         136.5x83.2x51mm
     Weight:             530 sm.
     Attachable accessories:  p ETR I auto-winder.

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www.butkus.usP ETR I  AUTO.WINDE R                         @
Specif ications
Power source:      4 pcs. of AA size (alkaline) battery
Wind speed:         approx. 2  f rames per second at maximum shutter speed.
Photographing with the auto-winder
1. Couple the winder with the camera body.
    (Fis.1B)
2. Tighten the screw. (Fig.19)
3. Set the switch to "ON". The winder ad-
   vances the film, if the film has not been
   advanced.
4. Set the exposure and focus.
5. Depress the release button  f ully to activate
   the shutter. The winder will immediately
    start advancing the film. At this moment, if
  you release your finger from the release   button, only a single shot is made. lf you                Figl 8                  Fisl 9
   keep depressing it, continuous shots at a
    rate of 2 f lsec. can be made.
6. When you have finished exposing the last
        f rame in your film cassette, take procedures
   as described in "REMOVING FlLM". You
   need not remove the winder from camera
   body when removing  f ilm.
NOTE: Set the switch at "OFF" position when
the winder is not in use.


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