Mamiya 645DF

The 645DF is designed exclusively for digital format. It is compatible with our leaf shutter lens, the Mamiya Sekor AF 80mm F2.8 LS D, a product certified by the high standards of renowned optics company Schneider-Kreuznach. When using the 645DF with a leaf shutter lens, flash synchronization speeds up to 1/800 sec. can be achieved. Auto-focusing has been reworked for greater accuracy and faster focusing speed needed in digital photography. Shutter time lag has been significantly reduced with this digital-only camera body.
The 645DF is compatible with all Mamiya 645 mounted digital backs.

Specifications:

Camera type
6x4.5cm format, electronically controlled focal plane shutter, TTL multiple mode AE, AF single lens reflex

Image size
56 x41.5mm (actual image)

Compatible digital backs
M series digital backs, Mamiya ZD Back and Db model, Digital backs from other makers with a Mamiya 645AF mount and MSCE

Lens mount
Mamiya 645AF Mount (manual focus confirmation, focus aid, stopped down metering)

Viewfinder
Fixed Prism viewfinder magnification x0.71 with built-in diopter adjustment (-2.5 to +0.5), optional diopter correction lenses for -5 to -2/ 0 to +3, built-in eye-piece shutter

Focusing screen
Interchangeable to suit the digital back in use

Field of view
Approx. 94% of actual image

Viewfinder information
Focus mark, out-of-focus mark, warning mark, aperture value, shutter speed, metering mode (A,S,A-S), exposure compensation value, flash charged mark, auto-bracketing mark, AE lock mark, multiple exposure mark.

Auto focusing system:
TTL phase difference detection device: CCD line sensor (l+l shaped, operational range: EV0 to 18 (ISO 100)

Focus area :
Displayed on viewfinder screen (focus area: center area of 10.8x3.6mm), Selectable AF area in custom functions from automatic to spot (left, right or center)

AF assist beam :
Activates automatically under low light or low contrast, range of 9m (when using AF 80mm F2.8 D lens)

AF Lock :
By half-pressing the shutter button in single AF mode, or by pressing the AFL button

Exposure modes :
Aperture-priority AE, Shutter-priority AE, Programmed AE (PH, PL setting possible) and manual

Shutter speed increments :
Set to 1/3 or 1/2 using the electronic dial lock function

Aperture increments :
Set to 1/3 or 1/2 using the electronic dial lock function

AE metering mode :
TTL metering; center-weighted average (AV), Spot (S), Variable ratio (A-S auto)

Metering range :
EV 2 to EV 19 (ISO 100) with AF 80mm F2.8 D lens

Exposure compensation :
+/-3 EV or +/-5 EV, selectable

AE lock :
With AEL button. Continuously pressing the AEL button will display difference between set value and metered value

Shutter :
Electronically controlled vertical metal focal-plane shutter, compatibility with Mamiya made leaf shutter lenses

Shutter speed :
In AE: 30 to 1/4000 sec., manual: 30 to 1/4000 sec. (1/3 or 1/2 steps), 1 minute to 60 seconds (1 step), X and B (B is electronically controlled), time, speeds up to 1/800 sec. with leaf shutter lens

Auto bracketing :
Enabled with auto bracketing button (3 frame shots, 5 frame or 7 frame shot). Increments in 1/3, 1/2, 2/3 or 1EV

Flash synchronization :
X contact point 1/125 seconds, In TV or M mode speed is automatically synchronized at 1/125 sec. For lower speeds (1/125 to 1/60) P or A is used (with Metz flash), Can be set away from terminal

Flash control :
TTL direct flash control, compatible with Metz SCA3002 system with SCA3952 adapter

Mirror up photography :
Accessible from drive dial

LCD display :
Program AE icon, synchro mode mark, shutter speed, aperture value, custom functions icon, user function icon, focal plane mode icon, lens mode shutter icon, AE lock icon, auto focus lock icon, mirror up icon, focus area icon, auto bracketing icon, self timer icon, repeat mode icon, delay mode icon, remaining battery power icon, spot metering icon, dial lock icon, flash compensation icon, exposure compensation icon, exposure compensation value, delay time

Sync terminal :
X contact (with focal plane shutter 1/125 sec. and with leaf shutter lens 1/800 to 1 sec.)

Self timer :
Self timer intervals from 0.5 to 90 sec. (1 to 10 by the second), 10 to 90 sec (in 10 sec. units), 2 to 10 min. (by the minute), 10 to 60 minutes (in 10 minute units)

Preview mechanism :
With preview button

Power requirements :
6 AA size batteries (alkaline-magnesium, lithium, nickel-hydride or nickel-cadmium rechargeable batteries)

Weight/ dimensions :
153 (W) x 128 (H) x 152 (D) mm, 1,030g (body only)

Phase One 645DF lens compatibility

What lenses are compatible with the Phase One 645DF?

Download a brochure on the current Mamiya Lens range Mamiya Lens Range 2010 (410KB)

Some questions often asked about Phase One products

Does the new 645DF body offers faster flash sync speeds? Will it use lenses with leaf shutters?
Phase One has partnered with Schneider to provide a line of extremely high quality leaf shutter lenses. The first three lenses in this new lens line are 55mm f/2.8, 80mm f/2.8, and 110mm f/2.8. Over time this lens line will be expanded.

Is the Phase One DF Camera an Open Platform?
Absolutely! Phase One believes that creativity is nurtured by freedom. The Phase One 645 is an open platform system maximizing choice. Besides the Phase One / Schneider Leaf Shutter Lenses all Phase One and Mamiya 645 Digital, AFD, and MF lenses are supported. Additional choices include Hasselblad V-series lenses with more multi-mount options being developed for future release. In the spirit of openness the Phase One 645 Camera is compatible with any digital back using the Mamiya 645 AF body mount. No restrictions!

What digital backs can go on the Phase One 645DF?
Any digital back that has a Mamiya 645 mount. These include Phase One, Leaf and Sinar

Download the brochure
Mamiya 645DF information PDF (1MB)

Download the manual
Phase One 645DF manual PDF (23MB)

Mamiya Lenses

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!

Download a brochure on the current Mamiya Lens range Mamiya Lens Range 2010 (410KB)