Mamiya announces its 645DF system in partnership with Phase One

The Japanese medium format camera maker Mamiya has introduced its version of the 645DF system it developed alongside Phase One.
The Mamiya 645ZDb Digital System consists of the Mamiya 645AFD III Medium Format Camera with Sekor AF 80mm f/2.8 D lens and the newly introduced Mamiya ZDb 22 Megapixel Digital Back.
At a retail price of $10,999, this digital system marks a new era in the high-end digital market. By offering this incredibly priced high quality digital system, a broad range of photographers who have been waiting for the right combination of quality and price, can finally step into the medium format digital world.

The platform for the Mamiya 645ZDb Digital System is the highly acclaimed Mamiya 645AFD III autofocus medium format camera with Sekor AF 80mm f/2.8 D lens. With an excellent range of high quality lenses, precise auto-focusing and fast handling, the 645AFD III has become the choice of professional photographers.
The Mamiya ZDb Digital Back offers all the features serious photographers demand, plus Mamiya’s communication protocol MSCE (Mamiya Serial Communication for External) has optimized two-way communication between the 645AFD III and the ZDb Digital Back. This produces an operating experience identical to using a one-piece digital camera.

Specifications:

Type
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)

Viewfinder
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
Interchangeable:
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
Shutter 
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)
Auto-Bracketing
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
Mirror-Up
Electronically-activated by Mirror-Up switch on grip
External LCD
On camera body:
Aperture value
Shutter speed value
AEL
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
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:
Year
Month
Date
Time
ID number (switchable between enabled and disabled)
Sync Terminal
X contact (sync speed 1/125th sec. and slower)
Cable Release
On shutter button
Remote-Control
Terminal On side of body (works with remote triggering devices and electromagnetic cable releases)
Self-Timer
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)

Size
6"(W) x 5"(H) x 7.2"(D) (153 x 128 x 184mm)
Weight
61oz. (1730g). w/o batteries / 1730g
Custom Functions
36 custom settings
Specifications are subject to change without notice.

Read more here: http://www.mamiya.com/mamiya-645zdb.html#Overview

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