Mamiya FAMILY User manual

NOMENCLATURE





1.  Cocking Lever                                7.  Aperture  Lever
2.  Shutter Button                               8.  Film Counter
3.  Eyepiece                                      9.  Distance Scale
4.  Shutterspeed Dial                          1.0. Depth of Field Scale
5.  Aperture Ring                           11.  Backlid Catch
6.  Focusing Ring                           12. Rewind Crank


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13. Cartridge Chamber                     19. Exposure Meter Needle
L4. Sprocket                                20. Sprocket Release Button
15. Take-Up Spool                         2L.  Synchroflash Socket
16. Photocell Window                       22.  Strap Eyelets
L7. Filmspeed (ASA) Dial                  23. Accessory Mount Socket
18. Exposure Meter Dial                    24.  Tripod Socket
                                             25. Focal Plane Mark

BEFORELOADING WITH FIIM FOR PICTURE-TAKING

  Read these instructions carefully so that you know the special features offered by the
single-lens reflex construction of your camera.
 PICTURESEXACTTYAS SEENIN THEVIEWFINDER,
  By use of a special pentaprism in  conjunction with  the picture-taking lens, the image
seen in the viewfinder is identical with the negative reproduction of the subject on the film.
Although there is a brief black-out of  the viewfinder image for  a  fraction  of a second   +
during shutter action, you can always see exactly what you are taking.
  PRECISEFOGUSING
  The light rays reflected by your subject pass through the main lens, and are deflected               a
               quick-return                             mirror                                       to                                   form       by           the                                     an image                                              on the viewing-focusingupward                                                                          screen.                                                                                   This      I                                                                        pentaprism        is                            and                                       through       seen               in correct                       orientation                                      size                                                 the viewfinderimage                                                         eyepieceand the
which reflects the rays three times. When the focusing ring  (6) is turned the image of the
subject, formed on the viewing-focusing screen, can be adjusted to maximum sharpness.
With the subject thus brought into correct focus, precisely as  it  will register on the  film,
the shutter button (2) can be pressedfor actual shooting. Becausethe focusing and viewing
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are done through  the same lens  as  for  picture-taking, there  is no  sighting  error
(parallax), while you are enabled to ascertain visually theextent of blurring of the areas in
front of and behind the main  subject which  is  in sharp focus.  With  the focus set at
infinity (oo), the viewfinder image is x0.8 magnification.
  OUIGK.RETURN}IIRROR,
 When the shutter button  (2)  is pressed to release the shutter mechanism, the  reflex
mirror  flicks up to return to its original position the instant the action of  the shutter  is
completed. Consequently, the subject is always clearly visible in  the viewfinder except
during the movement of the shutter.
  FULI-APERTUREVIEWINGAND FOGUSING
  This  camera  is  provided with  a  fully  automatic aperture mechanism which  closes
down to  pre-set aperture size only  during  shutter action. This means that maximum
aperture size is always available for viewing and for utmost precision in focusing.
 APERTURETEVER
  For checking the effects of pre-selected aperture size, there is provided a manual aperture
lever (7) which permits viewing at any  f/  stop desired. Releasing this  lever immediately
gives full aperture for viewing or focusing.

COCKINGLEVER
  This lever  (l)  simultaneously cocks the shutter and advances the flm one frame  in one
stroke.   It remains locked until the shutter button (2) is operated and the shutter mechanism
is released. This arrangement positively prevents double exposures.
 SHUITERSPEEDDIAL
  This dial (4) can be set at any  time,  either before or  after  cocking.  Click stops are
provided at each setting. When position " B " (bulb-manual  shutterspeed control)  is used,
the shutter remains open for as long as the shutter button (2) is kept depressed,and during
this time the viewfinder rvill remain blacked out,

                                     FILM TOADING

                                     This   camera    will    take   any    3S-millimeter    film
                                 preloaded  in  saf ety  cartridge.   Monochrome  or  color  in
                                   20- or 36-exposure lengths may be used. When  loading  or
                                  unloading   film,  always  avoid  direct  lighting.    Work   in
                                    the shade, using your own body  as  a  shield   if  no  other
                                     protection  is available.

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1.  Pull out the backlid catch (11), swing open the backlid
 on its hinge, and pull out the rewind crank  (Lz) fully. (Fig. 1)
   2.  Place safety  cartridge  containing  unexposed  film   in
 the cartridge chamber  (13).  Secure by  pushing  back  the
 rewind crank  (r2)  seeing that   it  is  tulry  seated.  pull  out
 about four  inches of  fllm,  fold inward  about a quarter  inch
 of the end, and secure to take-up spool (15).  Wind  a turn.
 of film on to the take.up  spool. (Figs. 2 &  3)
   3.  Turn  rewind  crank   (Lz)  clockwise  in  the  direction
indicated by the arrow  mark  to take  up  the  slack  in  the
safety cartridge.  (Fig.  4)  Check  fit  of  film  perforations  on
the lower side with  the sprocket teeth, and  turn  the  take-
up spool (15)  slightly  to make sure that  the  film  plays  out
properly.   Close  backlid,  and  secure  by  pushing   in  the
backlid catch  (11).
  4.  Cover the lens with  the  lens  cap.   operate  cocking
lever  (1) and the shutter button, making  blank shots, until

exposure of your film for the brightness of your subject-matter.
  1. Make sure that the filmspeed (ASA) dial (17) is set at the ASA  rating  of  the  film
you have in use.
  2, Turn the exposure meter dial (18) so that the shutterspeed setting you wish  to use
appears in the dial window " TIME "
  3.  Point your camera toward your subject, then by noting the position of  the exposure
meter needle (19) obtain the proper aperture value for correct exposure. Adjust the aperture
ring  (5) to set at the indicated value.
 CAUTIONS
  1) When using the exposure meter, be sure that the photocell window  (16)  is  not  obstructed in anY waY.                                                                                                                                                                                                                              .ili
  Z)  When, with shutterspeedat 15 (1/15 second), the exposure meter needle (19) is not                                 r Il
  deflectedsufficiently to indicate aperture setting 2.8 (f 12.8) or beyond, your subject is not
  bright enough for good exposure. Either the lighting must be improved or film of higher
  speed rating will have to be used.
  3)  When, with shutterspeedat 250 (I1250 second), the exposure meter needle (19) moves
 beyond 22 (f./22), the subject is tqo bright, and overexposure will  result. Use a  filter to

reduce the intensity of the light entering the lens. Proceed with  caution however since
   extraneous light  (from the sun or the sky) may be causing the exposure meter to indicate
   light value higher than that actually pertains to your subject.
   4) When using a filter, change the filmspeed (ASA) setting of dial (17) according to the
   exposure factor of the filter.  For instance, if you are using film of ASA 100 in conjunc-
   tion with a filter with a factor of X 3, you are in effect reducing your  filmspeed to one-
   third of its rating, namely ASA 33.  In this case set the filmspeed dial (L7) at a position
   between 50 and 25.

          HOTDING YOUR CAMERAFOR PICTURE.TAKING
   Supporting the camera on the palm of your  left  hand, the thumb and forefinger should
 rest lightly on. the focusing ring  (6), ready to make focusing adjustments. The right hand
 should lightly  grip the right side of the camera, with the index finger  free  to  rest  lightly
 on the shutter button (2). The thumb may be lightly hooked on the end of the cocking
 lever (1).
   Raise the camera to eye level, and sight through the eyepiece (3).  You will then have a
 stable grip and stance. The  left hand is used mainly  for  steady support, while  the  right

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hand gives added stability.
  When using the vertical position, the cocking lever side may be either raised or lowered.
If raised, use a modification of the horizontal grip, supporting the left end of the camera in
the palm of the left hand, keeping your left elbow in firm contact with your boCy.
   If the cocl<ing lever side is lowered, firmly clamp the camera between the base of your
right thumb and your fingers. The shutter button is operated by the  right  thumb, while
your right elbow should be kept tight against your body. You left hand steadiesthe camera
from above, with the index or middle finger turning the focusing ring  (6).

FOCUSING
  Focusing is done by turning the focusing ring  (6) while sighting your  subject through
the eyepiece (3).  While  it  is easier to sight and focus at full aperture, you may wish  to
know how much focusing tolerance (depth of field) you have at  the aperture  setting you
have selected. Actual  picture-taking conditions can be immediately checked merely by
pressing the aperture lever (7) to close down the iris diaphragm to the pre-setaperture size.
  When the subject-matter is too dark for accurate focusing by sight through the viewfinder,
set measured or judged distance on the distance scale (9), and note available depth of field
(focusing tolerance) by means of the color-codeddepth of field scale (10). The colorscor.
respond to those of the aperture scale on the aperture ring  (5).  For precise depth of field
computations,consult the depth of field table.
 NOTE
  Color-coding of the aperture scale (5), depth of field scale (10) and the exposure meter
  dial (18) is as follows:
    red-orange..........:................2.8(f/   )           orange-yellolv............,.................4
    yellow-green........................5.6        green                         .........8

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UNTOADINGFITM                                                                                                                                                                                                                                i
  When you have taken the number  (either 20 or 36) of  pictures available on your  film,                   i
stop trying  to squeeze in any more.  Rewind your exposed film  into  its  safety cartridge                   i
                                                                                                                                                                                                                                ibefore opening your camera.
  1.  Press sprocket release button (20), making sure it remains depressed. Erect rewind
crank  (L2), and turn clockwise in the direction indicated.
  2 . W h e n t h e e n d o f t h e f i l m s e p a r a t e s f r o m t h e t a k e - u p s p o o l ( 1 5 ) , y o u w i l l s e n s e t h i s
by feel. Do not wind film fully into the safety cartridge. Open backlid, pull out rewind
crank (12) and remove safety cartridge. The depressed sprocket release button (20) will
return to normal position automatically upon operation of the cocking lever (1).                                            i
 GAUTIONS
  1)   If  at the end of your film (sometimes before the film counter (8)  indicates the  full
  number of frames available) the cocking lever (1) :ams part way through  its stroke, do
  not force.  Press the sprocket release bution (20), and complete cocking action. Rewind
  film into safety cartridge.
  2)   If jammed cocking lever is forced, the film may be stripped or  the end may come

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lgose out  of  the safety cartridge making  it impossible to rewind.   If  this happens,and
  you wish to save your film, open camera only in complete darkness.

                    SVNCI{ROFIASH  PHOTOGRAPHY
  This camera iS provided with  a  synchronizing mechanism for  setting  off photoflash
simultaneously with  the  action  of  the  shutter.  Since there is no provision made for
time lag, accurats synchronizationis possiblewith electronic flash (strobo) at all shutterspeeds,
and with class M and class F flashbulbsup to speedsof 1i30 and 1/60 secondrespectively.
  On the front of the camera, there  is provided a synchroflash socket (21) of. the JIS-B
type (German type)
  To mount flashgun on your camera, screw adaptor into the accessorymount socket (23).

                        SPECIAL ACCESSORIES

  Lens Hood (with leather carrying case) ; Filters (Toshiba screw-in type, 40.5mm diameter) ;
MAMIYA BC III flashgun.
  In preparation: PROXAR auxiliary lens for close-rangephotography (.55 to 1 meter range) ;
ConversionLens for portraiture (focal length increasedto 65mm, magnification x1.36).