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Mamiya 645AFD III

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Faster focusing... Greater connectivity... Easy to use... The Mamiya 645AFD III

Responding to the demands of medium format film and digital shooters, Mamiya has incorporated the latest auto focusing technology into the 645AFD III. The Mamiya 645AFD III employs a new, powerful and silent coreless motor that makes its auto focus system faster and quieter than ever before. A new focusing algorithm provides precise focusing under a wide range of lighting situations. To further improve focusing control, the focusing point is user-selectable and can be positioned in the center, right or left side of the screen or can be set on “auto” to let the camera focus on the closest subject.

Mamiya pioneered the world’s first true cross-platform film or digital camera, and includes its latest MSCE (Mamiya Serial Communication for External) data transfer technology in the 645AFD III. All critical exposure and shooting information is internally exchanged between the camera and compatible digital camera backs. Whether you’re shooting film or digital, it’s the most affordable and technologically advanced medium format camera available. The 645AFD III is loaded with 36 custom functions.

Individual camera preferences such as 1/3, 1/2 or full aperture/shutter speed increments, flash synch speed, dial functions, exposure compensation increments, bracketing sequence, dial direction setting and much more are easily set and recalled in a snap. In addition, separate user configurations can be set and recalled on-the-fly when several photographers are using the same camera.

Dedicated "Quick Action" buttons have also been designed into the 645AFD III for fast activation of such functions as multiple exposures, auto-bracketing, key lock, auto exposure lock and auto focus lock. The Mamiya 645AFD III combines sophisticated advanced features, integrated microprocessor controlled electronics, enhanced performance and the quality of medium format film or digital capture with the power of proven World-Class Mamiya autofocus optics.

Mamiya 645AFD III Specification

6x4.5cm format (actual image size 56x41.5mm)
Electronically controlled focal-plane shutter
TTL multiple mode AE
AF single lens reflex

Film Type
120 roll film (16 exposures)
220 roll film (32 exposures)
Polaroid Land Pack Film (100 & 600 series)

Lens Mount
Mamiya 645 AF Mount
Compatible with M645 mount (manual focus confirmation, focus aid, stop-down exposure metering)

Also compatible with Hasselblad V series lenses (manual focus confirmation, focus aid, stop-down exposure metering). Requires optional Lens Mount Adapter #310-244 (Black) or #310-245 (Silver)

Fixed prism viewfinder magnification x0.71
Built-in Diopter adjustment -2.5 to +0.5 (separate diopter correction lenses provide adjustment ranges of -5 to -2 and 0 to +3)
Built-in eyepiece shutter

Focusing Screen
Matte (supplied with camera)
Grid (Checker)
Manual Focus Microprism for M645 lenses

Field of View
94% of actual image

Viewfinder Information
Focus mark
Out-of-focus direction marks
Aperture value
Shutter speed
Metering mode (A, S, A/S AUTO)
Exposure compensation value (difference between set value and actual value)
AE Lock
Bracketing Position
Battery Checker

AF System
TTL phase-difference detection type, user-selectable focusing point (center, left, right or auto)

Detecting Device
4 CCD line sensors in a | + | shape (area indicated on the focusing screen, 10.8 x 3.6mm)

Infrared AF Sub-Beam
Activates automatically under low light, low contrast in Single (S) AF Mode
Switchable On/Off.
Range: 29.5 ft. with 80mm f/2.8 AF lens
Automatic switching to flash unit’s built-in sub-beam when Metz flash unit is attached with SCA 3952 adapter

AF Lock
Half-press on shutter release and AF Lock Button

Exposure Control Modes
Manual (M)
Flash Sync (X)
Aperture priority AE (Av)
Shutter priority AE (Tv)
Programmed AE (P) with program shift: PH and PL settings possible

Metering Method
5-segment evaluative center-weighted average (AV) with bright point elimination
Spot (S)
Variable Ratio Auto-Shift (A-S AUTO)

Setting Steps
Shutter speed and aperture both can be set in 1/3 or 1/2 steps
Electronic dial lock (in X, M, Av and Tv exposure modes)

Light Metering
TTL metering; center-weighted average (AV), spot (S) and auto A-S variable ration

Metering Range
EV 2 to EV 19 (with ISO 100 film, f/2.8 lens)

Exposure Compensation
+/-3 EV or +/- 5EV (1/3, 1/2 or 1 steps)

Film Speed
ISO 25 to 6400

AE Lock
With AEL button; released by re-pressing or power switch off; light metering value differentiation in viewfinder exposure compensation display when AEL button is held down; +/-6 EV (1/3 step); shift from set to metered value in M metering mode

Electronically controlled vertical metal focal-plane shutter

Shutter Speeds
AE: 30 to 1/4000 sec. (1/8 step)
Manual: 30 to 1/4000 sec. (1/2 step)
X (locks shutter speed to 1/125th sec. while allowing for full control of aperture values)
B (Bulb, electronically controlled)
Automatic shutter curtain open mechanism (opens when film magazine, Polaroid holder or digital back is removed, automatically closed when re-attached)

Enabled with Auto-Bracketing button (2 or 3 frames selectable) , 0.3, 05, 0.7, 1EV step units selectable

Flash Synchronization
1/125 sec. or slower, automatically sets to 1/125 when shutter speed dial is set to higher speeds (when Metz flash unit is used). In P mode, the shutter speeds are controlled to 1/125 ~ 1/60 sec.

Flash Control
TTL direct metering, supports Metz SCA3002 system (SCA 3952 adapter required), and SCA 3000 and SCA 300 series (300 series requires both SCA 3952 and SCA 3000C converter)

Film Transport
Automatic via built-in motor, single or continuous exposures 2 frames per second (with new HM402 Roll Film Magazine).

Film Loading
Automatic advance to first frame when shutter release button is pressed (Easy Loading)

Multiple Exposure
Enabled with Multiple Exposure Button (2 to 6 exposures or unlimited); can be cancelled. More exposures may be dialed in before exposure set is complete

Electronically-activated by Mirror-Up switch on grip

External LCD
On camera body:
Aperture value
Shutter speed value
Battery check
Programmed AE
Programmed AE shift value
Data imprinting mode
Flash Compensation Indicator (Over/Under)
Auto-Bracketing indicator
Multiple Exposure indicator
Self-Timer indicator
On Interchangeable Film Magazine:
ISO speed
Type of film (120 or 220)
Exposure number
Buffer for ZD Digital Back v1.1 and newer
On Interchangeable Film Magazine:
ISO speed
Type of film (120 or 220)
Exposure number

Data Imprinting
7 segment dot matrix
DATA mode imprints:
Exposure mode
Aperture value
Shutter speed value
Exposure compensation
Bracketing position (normal, over, under)
Metering mode
ID number
Lens Focal Length
DAY mode imprints:
ID number (switchable between enabled and disabled)

Sync Terminal
X contact (sync speed 1/125th sec. and slower)

Cable Release
On shutter button

Terminal On side of body (works with remote triggering devices and electromagnetic cable releases)

With shutter release mode selector 2 to 60 sec. (default setting: 10 sec., can be set in 1 sec. steps between 2 and 10 sec., and in 10 sec steps between 10 and 60 sec.)

Depth-of-Field Preview
Preview button on front of camera, aperture can be changed during DOF check

Tripod Socket
1/4 inch and 3/8 inch included

Power Requirements
6 AA batteries (alkaline-magnesium or rechargeable Nickel-metal hydride)

6"(W) x 5"(H) x 7.2"(D) (153 x 128 x 184mm)

61oz. (1730g). w/o batteries / 1730g

Custom Functions
36 custom settings

Specifications are subject to change without notice.

Lenses Specification

Mamiya lenses are designed and built for today’s foremost photographers who expect their equipment to provide both outstanding and distinctive results. Engineers at Mamiya have developed rigorous performance criteria for each lens design. No detail is overlooked. No test is omitted.

The goal is technical perfection...The result is a series of lenses which have set the new world-standard of performance. Each lens element is precisely polished and coated using Mamiya’s proprietary multi-coating process to increase light transmission, dramatically reduce flare, ensure crisp, clean whites and vibrant, yet natural colors.

Mamiya engineers and inspectors test continuously as the lens is assembled to insure flawless quality. The result is a lens designed so carefully, built so meticulously, that it consistently renders extraordinary performance.

It is Mamiya’s unique balance of extreme sharpness, brilliant contrast, accurate and consistent color fidelity and overall high performance that captures the imagination of contemporary photographers who choose Mamiya to express their personal visions. Among today’s community of world famous photographers, Mamiya lenses have established themselves as the new benchmark by which others are measured.

While all Mamiya lenses can be used on today’s high performance digital backs, the new Mamiya Sekor D series of lenses raise sharpness to a new level. Utilizing exotic Low Dispersion glass and Aspherical lens elements, the Sekor D Digital Lens series produces ultrawide coverage (28mm f4.5), exceptional color accuracy and sharp, contrasty images. And all Mamiya Digital lenses are designed to work with film backs, not only digital backs!

More Information

Three metering modes provide detailed information about lighting conditions

(A) 5-Segment Evaluative Average Metering (Center-Weighted)
This mode meters the average brightness of the entire image, with emphasis on the center of the screen. The four outer segments plus spot area are measured, the brightest of the outer four eliminated and the remaining three plus spot are averaged together for remarkable results is challenging lighting situations.

(S) Spot Metering
This mode meters reflected light on the image at a specific point, indicated by the circle at the center of the viewing screen. It is optimal for use with high contrast subjects and for measuring brightness at a specific area of the subject. The angle of acceptance changes according to the focal length of the lens attached.

(AUTO A-S) Variable Ratio Metering
This mode automatically switches between 5-Segment Evaluative Average and Spot modes depending on the relative contrast within the overall image; it provides exposure settings suited to a wide range of subjects and lighting conditions.


While a camera body and lenses are key elements to a camera outfit, it’s the accessories that make it a complete system. Whether you are shooting close-ups or working in cold climates, Mamiya has the accessories you’ll need to get the job done.




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