The Mamiya M645 1000S is a new improved
model of the M645, a camera widely acclaimed
for bridging the gap between small and large
format cameras by introducing the medium for-
mat, the purpose of which is to offer the world
of larger-negative quality to camera users who
are accustomed to the handling ease and com-
pactness of 35mm SLR’s.
Every care has been taken to assure that your
Mamiya M645 1000s will provide you with years
of trouble-free service. However,
to avoid possi-
ble mishandling, be sure to carefully read this in-
struction manual before using your new camera.
Special Features of the Mamiya M645 1000s
Specifications
Names and Functions of Parts ..........................................
................ 3
........................................................................ 5
7
Using the Waist-Level Finder
The Mamiya Moving Coil Electronic Shutter.. .. ..............
Depth-of-Field
.....................................................................
.......................................
S
Testing to See if the Camera Functions Properly ........ 1 6
Using Flash
...........................................................................
Interchanging Lenses ........................................................
Interchanging Finders ........................................................
Focusing Screens
..............................................................
1 7
1 8
2 0
Inserting a Battery
.............................................................. 2 1
Battery Check ....................................................................... 22
Film Loading
.......................................................................
Film advancing
.....................................................................
Shutter Speed Dial ..............................................................
2 3
2 7
2 7
Multiple-Exposures
............................................................
Infrared Photography
.........................................................
Mirror Lock-up .....................................................................
Using the Delayed Shutter Release
Interchanging the Film Advance Crank .......
.................................
....................
Tripod Socket ........................................................................
Time Exposures
..................................................................
4 4
4 7
4 8
4 9
5 0
5 0
51
5 2
5 3
5 5
5 5
Aperture Ring/Stop-down Operation ..............................
2 8
................................................................................ 2 9
........ 3 0
31
3 2
....................................................................
....................................................................
Shutter Release and Film Transport Mechanism
Focusing
Unloading Film
T h e Neck Strap
Trouble-Shooting
Precautions ...........................................................................
Care of the Camera
.................................................................. 5 6
5 7
............................................................
Mamiya-Sekor C Lenses ...................................................
Holding the Camera
Using the PD Prism Finder S
Using the CdS Prism Finder
...........................................................
3 2
Depth-of-Field Table
.........................................................
............................................. 3 5
Accessories
..........................................................................
............................................. 3 9
2
5 8
5 9
6 2
6 3
em-.-
Special Features of the Mamiya M645 1000S \ ’ \
__-~_--- ~.~ -.-I~ .-. -
The Mamiya M645 is a 6 x 4.5cm large-negative SLR that
is both extremely versatile and compact.
4 . Large, Bright Viewfinder
i . Large-Negative Quality
The 6 x 4.5cm format offers approximately 3 times more
area than the 35mm format. Moreover, unlike the 6 x 6cm
square negative, there is little waste of the negative area.
For beautiful color enlargements everytime, the 6 x 4.5cm
format is the ideal format.
2 . Compact Design
Despite the large-negative it produces, the Mamiya M645
is designed to handle as easily as a 35mm SLR. Its com-
pact size and light weight are perfectly suited for the ac-
tion photographer. It fits so well into one’s hands that it
becomes an extension of his reflexes,
3 n Mamiya’s Moving Coil Electronic Shutter
Mamiya has developed a revolutionary Moving Coil Elec-
It becomes easy to catch the peak of action when looking
through the large, bright viewfinder. Because of the
Mamiya M645’s automatic diaphragm and quick-return
mirror, the viewfinder never grows dim. It is always bright,
ready for the next photograph.
Interchangeable Finders
5 .
a Lightweight, dual-function Waist-Level Finder S
A compact and lightweight finder which opens and closes
with a single touch, the Waist-Level Finder S is ideal for
copying, close-ups, low and high angle pictures, and
working in dim light. Additionally, it is instantly convertible
to an eye-level sports finder which accurately shows the
fields for the 80,110,150 and 210mm lenses, allowing one
to easily follow the quickest action.
0 Prism Finder
The Prism Finder is well-suited for action photography.
tronically Controlled Shutter for the Mamiya M645. Elec-
Whether the vertical or horizontal format is utilized, focus-
trical consumption of this new shutter is approximately
1/10 that of previous electronic shutters. Furthermore,
consumption remains constant regardless of the shutter
ing and following action is as easy as on a 35mm SLR.
0 PD Prism Finder
The PD Prism Finder employs silicon cells for full-aperture,
speed being used. In addition to accuracy, long battery
center-weighted readings. It is your assurance that every
life is assured by this new shutter.
negative will be properly exposed.
3
a CdS Prism Finder with built-in meter
Accurate
through-the-lens exposure measurement
is
possible with the CdS Prism Finder which couples to the
aperture of the lens and indicates the proper shutter
speed to set on the camera.
6 . Flatness of the Film Plane
Developed through Mamiya’s long experience as a manu-
complete with meter coupling.
l Multiple-Exposure Provision
Merely lowering the multiple-exposure lever allows the
photographer to take as many multiple-exposures as he
wishes. During multiple-exposures, the exposure counter
does not move.
a Mirror Lock-Up
The Mamiya M645 is designed to have minimal mirror
facturer of 120/220 roll-film cameras, the Roll-Film Inserts
shock; nevertheless, when it is necessary to completely
for the Mamiya M645 keep the film perfectly flat for edge-
eliminate vibrations, all you have to do is lock the mirror
to-edge sharpness. Inserts are available for 120 or 220
in the up position. To do so, simply lower the mirror lock-
roll-film.
7 . Multi-Coated Lenses
Mamiya-Sekor lenses have achieved world-renown as pro-
fessional lenses of exceptional contrast, high resolution,
clear definition, and excellent color balance. All the lenses
for the Mamiya M645, from wide-angle to telephoto, have
been multi-coated to maintain their high standard of per-
formance even under adverse lighting,
8 . Unlimited Scope
A full range of accessories are available for the Mamiya
M645 to assist the photographer in capturing virtually any
up lever. Mirror lock-up provision makes close-up and
telephoto photography possible even at slow shutter
speeds.
l Two Shutter Release Buttons
The Mamiya M645 is equipped with two ideally located
shutter release buttons, so that regardless of how you
hold the camera, there is always a release button at your
finger tips.
a Built-in Delayed Shutter Release
a Depth-of-Field Preview Lever
A single touch on the Depth-of-Field Preview Lever,
which is ideally located on the camera body, stops the
type of image. Accessories include hand grips, inter-
lens down to the preselected aperture for direct viewing
changeable focusing screens, and auto extension rings
of the depth-of-field.
4
-
Specifications
- --ll_-- ____
0 Camera Body
Camera Type:
6 x 4.5 cm electronic focal-plane shutter SLR.
Film Type:
120 roll-film for 15 exposures,
220 roll-film for 30 exposures
Actual Negative Size:
56 x 41.5mm (2-13/64” x1-41/64”)
Standard Lenses:
Mamiya-Sekor C (multi-coated)
80mm f/1.9, automatic diaphragm,
with meter coupler, 67mm filter size
Mamiya-Sekor C (multi-coated)
80mm f/2.8, automatic diaphragm,
with meter coupler, 58mm filter size
Lens Mount:
Mamiya M645 bayonet mount
Shutter:
B, 8-1/1000 sec.
Moving Coil Electronic Focal-Plane Shutter,
FP and X (1/60 sec.) synchronization,
Shutter release lock and shutter speed dial lock
provision
Battery Type:
One 6V silver-oxide battery 4SR44
(Eveready 544, UCAR 544, Mallory PX28)
or 6V alkaline battery 4LR44
Focusing Method:
Each Mamiya-Sekor lens is equipped with its own
helicoid focusing mount
Focusing Screen:
The standard focusing screen, which is interchange-
able, has three focusing aids, a central split-image
rangefinder spot (wedge set at a 45° angle) sur-
rounded by a micro-prism collar and outer ground
glass ring. A Fresnel lens assures corner-to-corner
brightness, and 94% of the picture-taking area is
visible.
Mirror:
Instant return, with mirror lock-up provision
Film Transport:
A single revolution of the interchangeable film ad-
vance crank transports the film. The camera is
equipped with double exposure prevention, but mul-
tiple exposure can be easily made.
Exposure Counter:
Progressive
changeover with insertion of 120/220 roll-film inserts
type, automatic
reset, automatic
Battery Check:
Depressing B.C. button illuminates green L.E.D if
battery condition is satisfactory.
Multiple-Exposure:
Lowering multiple-exposure lever makes multiple-
exposures possible; exposure counter does not
move during multiple-exposures.
Delayed Shutter Release:
Variable time delay of 5-10 seconds.
Depth-of-Field Preview Lever:
Spring-loaded, self-returning.
Interchangeable Finders
D
Prism Finder:
The image in the Prism Finder is right-side up, lat-
erally correct, and moves in the correct direction;
magnification of 0.74X with the standard lens at in-
finity, built-on hot-shoe; comes with eyecup.
PD Prism Finder:
Prism Finder with built-in silicon cell, through-the-
lens,
full-aperture, center-werghted metering: 7
LED’s visible in the viewfinder for correct or com-
pensated exposure, with 100 ASA and f/1.9 lens,
meter coupling range of EV -1.15 - +19 (f/1.9,
8 sec.- f/22, 1/1000 sec.); with f/2.8 lens, EV 0- 19
(f/2.8, 8 sec. - f/22, 1/1000 sec.); camera body bat-
tery serves as power source; other features same as
Prism Finder.
CdS Prism Finder:
Prism Finder with CdS through-the-lens, full-aper-
ture, center-weighted metering; zero method with
indicator needle; couples to aperture and shutter
speed manually set, power source, one 1.5V silver
oxide battery SR44 or alkaline battery LR44, with
100 ASA and f/1.9 lens, meter coupling range of
EV 2.85 - 17 (f/1.9, 1/2 sec. - f/11, 1/1000 sec.):
with f/2 8 lens: EV 4 - 18 (f/2.8, 1/2 sec. - f/16,
1/1000 sec.); other features same as Prism Finder.
Waist-Level Finder S:
Opens and closes with a single touch; magnification
of 1.3X (w/standard lens at infinity); diopter correc-
tion lenses interchangeable with standard magnifier;
built- in sports finder shows field for standard lens
and accepts a mask for 110,150, and 210mm lenses,
all fields showing approximately 80% of the picture-
taking area.
Dimensions and Weight:
(width, height, depth, w/80mm f/1.9 lens)
(w/Waist-Level Finder S) (w/1.9 lens)
3-29/32”
x 3-15/16”
x 6-9/16”
(99.3 x 100 x 166.5mm)
(w/Prism Finder)
3-29/32”
x 4-27/32” x 6-9/16”
(99.3 x 122.7 x 166.5mm)
(w/PD Prism Finder S)
3-29/32” x 4-29/32”
x 6-9/16”
(99.3 x 124.7 x 166.5mm)
55.4 oz
(1570 g)
62.3 oz
(1765 g)
66.5 oz
(1885 g)
(w/2.8 lens)
49.6 oz
(1405 g)
56.4 oz
(1600 g)
60.7 oz
(1720 g)
61.4 oz
(1740 g)
(w/CdS Prism Finder)
3-29/32” x 4-29/32” x 6-9/16”
(99.3 x 124.7 x 166.5mm)
67.2 oz
(1905 g)
Depth w/80mm f/2.8 lens; 6-1/16” (154mm)
Names and Functions of Parts (1)
-
- -___--
lug
types are
Focusing screen
Five different
available.
Focusing screen
Mounting guide pin for
finder
Fits into the finder opening.
Alignment dot
Alignment reference point
for mounting lens.
Depth of Field Preview
A slight upward push on the
lever stops lens down to
preselected aperture,
spring-loaded for self-return.
Shutter release button
(front)
When pushing in on this
button, the upper shutter
release button is coupled to
move in unison.
Equipped with cable
lease socket.
Shutter release lock ring
Turn lock ring and align with red dot to simul-
taneously lock both shutter release buttons.
To unlock, align with white dot.
re-
lamp
Battery check
If the green battery check lamp glows when the
battery check button on the opposite side is de-
pressed, battery condition is good.
Flash sync terminals
With safety cover, only the
cover of the sync terminal
being used is removed.
Neck strap lug
Shutter speed
alignment mark
Shutter speed dial
Push in on safety lock built
into the center of the shut-
ter speed dial while rotating
dial to desired speed.
Do not set dial to the @
position unless using the
PD or AE Prism Finder.
---4B Lens release button
Push in and simultaneously
turn the lens counterclock-
wise to remove.
Delayed Shutter Release Lever
To cock the built-in delayed shutter release, turn the
lever clockwise. Upon removing your finger from the
lever it will return to its former position, leaving the
Never touch the
surface of the mirror. activating lever exposed. Push the activating lever in
the direction of the engraved arrow to start the de-
7 layed shutter release.