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3
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4
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4
7
q 
Type:
6  x  7cm 
reflex  camera
lens-shutter  type,  single-lens
Lens  mount:
Bayonet mount (with safety lock ring)
Viewfinder:
Horizontal  format  index  mark  interlocks
with  revolution  of  revolving  adapter  (Ver-
tical  format  based  on  fixing  index  line  on
focusing  screen.)
Focusing  hood:
Single-action  opening  and  closing,  with
mounting lock.
Interchangeable.
Finder  magnification  is  2.5X.
Magnifier  is  also  interchangeable.
Focusing  screen:
With  fresnel  lens 
Interchangeable
Revolving  adapter  (exclusively  for  Pro-S):
Vertical  and  horizontal  positions  revolving
up  to  full  90°  rotary  system,  with  format
indication interlocking mechanism.
By  R-lock  system,  interchangeable  with
other adapters.
By  G-lock  system  of  revolving  adapter,
G-lock-type  film  holders  are  attachable.
Focusing:
Bellows  extension  system  with  rack
pinions.
Film  advance:
One-stroke  lever  film  advance  (After  70”
winding,  can  be  wound  in  several  short,
definite  strokes)
Automatic double-exposure prevention.
Film wind stop automatic release.
Multiple   exposure  is  obtainable  optionally.
Film  counter:
Automatic  resetting  type;  Red  index  mark
disappears upon completion of film wind-
ing.
Provided  with  dark  slide  dislocation  pre-
ventive device and memo clip.
(Camera body with roll film holder)
Height:  5-21/32in.  (144mm)
Width:
4-3/32in.  (104mm)
Length:  8-31/32in.  (228mm)
(with  9Omm f/3. 8 lens)
8-17/321n. 
(with 127mm f/3.8 lens)
(217mm)
Camera body with revolving adapter and
focusing  hood  _.....  3  lbs.,  3-2/16 oz.  (1450g)
(450g)
Pro-S  roll  film  holder  15-14/16 oz.
90mm   f/3.8  lens  .._.. 28-6/16   oz.  (805g)
(750g)
127mm  f/3  8  lens  .._.. 26-7/16  oz.
Maximum  extension  46mm. With focusing
knob fixing device.
Shutter  and  mirror  cocking:
Single-action  (75O)  cocking  by  lever  on
camera body side.
Others:
Accessory  shoe  is  provided.
Shutter  release  button  can  be  locked  to
prevent  releasing  the  shutter  accidentally
Mamiya  Sekor  90mm  f/3.8  with  lens  hood
Mamiya  Sekor  127mm  f/3.8  with  lens  hood
Filter  screw  diameter:  77mm
Aperture:  Full  automatic  diaphragm  (with
depth-of-field  preview  lever).  f/3.8  to  32
(with  click-stop  for  half-step  aperture
settings).
With  mirror-up  photographing  feature
(independent  mirror  release)  device.
Shutter:
Seiko  #  1  shutter
1 to 1/400 second and T (Time)
Flash 
synchronization:
M-X  full  synchronization
Film  used:
120  roll  film  10  exposures;  6  x  7cm  format
Actual negative size:
56  x 68.4mm
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.
By slidling this nameplate, the focusing
hood  can  be  exchanged.
This  latch  prevents  the  focusing  hood
from  slipping  off  by  carelessly  moving
the  nameplate.
The  lens   is  clamped  to  the  camera
body  by  this  ring.   When  the  mirror  is
not  cocked,  a  safety  device  prevents
the tens from being removed.
Both  the  shutter  and  the  mirror  are
cocked  by  this  lever.  Unless  they  are
set, a safety device prevents the shutter
release  button  from  being  depressed.
When
this  dark  slide  is  inserted,  a
safety  device  prevents  the  shutter
release  button  from  being  depressed.
(Draw  out  the  dark  slide  before  taking
a  picture)
When  this  ring  is  aligned  with  the
orange  dot,  a  safety  device  prevents
the  shutter  release  button  from  being
depressed.  (Align  the  ring  with  the
white dot before taking a picture.)
When  the  camera  and  the  roll
film
holder  are  not  ready  for  photography,
a  safety  device  prevents  the  shutter
from being released.
0
 
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6