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Product Highlights
  • CCD line Sensor
  • Medium Format
  • M645 Mount
  • 0.71x Magnification
  • 1 kg (2.2 lbs) Weight
  • 15.3 x 12.8 x 15.2 cm (6 x 5 x 6") Dimensions
Phase One Kit of 645 DF Camera Body, 80mm LS lens Phase One Kit of 645 DF Camera Body, 80m...
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Phase One has always been dedicated to providing the ultimate image quality and choice supporting creativity at the highest level and continues to do so with the Phase One 645 open platform camera, a breakthrough in the medium format market redefining both image quality and choice.

The Phase One 645 DF Camera System achieves a virtually seamless marriage of lens, body, Aptus II backs and Leaf Capture software. Perfect harmony keeps your focus on the subject, not the equipment. Incredible images are created through a perfect blend of man and machine, where the imagination is the only limit.

Freedom of choice is the freedom to use the right creative tool for the job. Shoot digital or film with no lens or back restrictions. The multi-mount for lenses, including support for the Mamiya 645 lens range, provides a staggering range of lens choices. Expand your platform options even further by mounting your Phase One 645 back on a large format, architectural or a technical camera.

The ultimate warranty completes the experience giving you absolute peace of mind. Expand your craftsmanship with total confidence and unleash your creativity. Freedom of choice is freedom to use the right creative tool for the job.

The Phase One 645 is an open platform camera system maximizing choice. Besides the Phase One 80mm f2.8 lens, all Mamiya Sekor 645 Digital, AFD and MF lenses are supported. Choose the new 28mm wide angle and work with digital or fi lm. Multi-mount for lenses expands your choice even further.

Leaf backs support many platforms. Simply adapt the Aptus II digital back to a large format technical camera for architecture or table-top photography. In the same spirit, the Phase One 645 Camera is compatible with any digital back using the Mamiya 645 AF body mount. No restrictions!

Complete integration optimizes image quality
Phase One and Leaf engineers have taken advantage of complete integration, optimising image quality from capture to processed image. Advanced communication between lens, camera body and Aptus II back enhance performance, increasing capture opportunity.

Stop action or experiment with extreme long exposures with shutter speeds ranging from 1/4000th of a second to 60 minutes. Choose your favorite lenses from the greatest range available, including Mamiya 645 optics family, Hasselblad V-series, Pentacon 6 and specialty optics. Ergonomically designed grip for day long hand held photography, and manual dials for simple control of exposure.

The complete integration extends to optimization of overall image quality using Leaf Capture software. This includes breakthrough technology providing lens correction for the Phase One 80mm lens as well as Mamiya Sekor 645 Digital, AFD and MF lenses.

Phase One and Leaf are the recognized industry leaders in image quality with digital backs. Photographers demanding the best possible images and rental houses that demand quality and virtually indestructible equipment, have made Leaf backs the number 1 selling medium format solution. The Phase One 645 Camera System, including the precision manufactured 80mm f2.8 digital lens, now raises the benchmark for quality and performance even higher.

Equipment made to last combined with extended support and warranty program (additional price)
The Leaf digital backs are the most trusted and reliable backs on the market. Phase One introduces a new warranty for the 645 Camera. This value added Phase One warranty provides coverage for 36 months or an unprecedented 300,000 exposures. Service also includes priority access to Phase One support technicians and to the trusted Phase One partner network with representation in over 80 countries.

Phase One and Leaf support and service delivers the peace of mind you need. Keep your focus where it matters most - on the subject and your creativity!

Key Features


  • Open platform for shooting digital or film
  • Multi-mount for wide selection of lenses 
  • Advanced camera integration provides digital optical lens correction 
  • 1/4000th of a sec. to 60 min. exposures 
  • Includes precision manufactured 80mm f2.8 AF lens



Product Specifications


Detailed Specifications
Camera Type 6x4.5cm format, electronically controlled focal-plane shutter, TTL multiple mode AE, AF single lens reflex
Actual Image Size 56x41.5 mm
Lens Mount Mamiya 645 AF Mount, compatible with M645 Mount
(manual focus confirmation, focus aid, stopped-down exposure metering)
Viewfinder Fixed prism viewfinder magnification x0.71; built-in diopter adjustment (-2.5 to +0.5, optional diopter correction lenses
provide adjustment ranges of -5 to -2 diopter and 0 to +3 diopter); built-in eye-piece shutter
Focusing Screen Interchangeable, Matte (standard), Checker, and Microprism Type C for Non-AF M645 lenses.
Field of View 94%* of actual image
Viewfinder Information Focus mark, defocus mark, warning mark, aperture value, shutter speed, metering mode (A, S, A/S), exposure compensation value (difference between set value and metered value) and flash ready / OK lamp with TTL Metz connection.
Auto Focus Method TTL phase difference detection method; sensor: CC D line sensor (I+I type); operating range: EV0 to EV18 (ISO 100)
Focus Area Displays the focus area in the viewfinder screen
AF Assist Beam Activates automatically under low light, low contrast.
AF Lock By pressing the shutter release button halfway down in the AF-S mode, or by pressing the AFL button.
Exposure Modes Aperture-priority AE, shutter-priority AE, programmed AE (PH, PL setting possible), and manual
AE Metering Mode TTL metering, center-weighted average (AV), spot (S), and variable ratio (A-S auto)
Increments of Shutter Both the shutter speed and the aperture level can be set to 1/3 or speed and aperture 1/2 using the electronic dial lock
Metering Range EV 2 to EV 19 (with ISO100 and AF80mm f/2.8 D lens)
Exposure Compensation Expandable to ±5 EV
AE Lock 6x7cm
Shutter Touchscreen
Shutter Speed AE 30 to 1/4000 sec. (1/8 step), manual 30 to 1/4000 sec. (1/2 or 1/3 steps), 1 min-60 sec. (1 step), X, bulb (Bulb, electronically controlled), Time, shutter curtain protection mechanism
Auto Bracket Shot Enable with auto bracket button (3 frame shots, 5 frame or 7 frame shot with auto bracketing). Specify 1/3, 1/2, 2/3 or 1EV steps.
Flash Synchronization X contact point, 1/125 second (focal plane), 1/800 or 1/1600 second (leaf shutter)
Flash Control TTL direct flash control, supports Metz SCA3002 system (SCA3952 Adapter)
Cable Release Socket On shutter button
Remote Control Terminal On side of body; electromagnetic cable release RE401 and RS402 can be purchased separately.
Depth-of-Field Confirmation Preview Button on body
Custom Settings 19 items
Power Requirements 6 AA-size batteries (alkaline-magnesium, lithium, nickel-hydride or nickel-cadmium rechargeable batteries).
External Power Socket An external battery case can be connected.
Size & Weight 6 ”(W)X5 ”(H)X6 ”(D) / 153(W)X128(H)X152(D)mm : 2.3 pounds / 1,030 g (body only)

Questions & Answers

Phase One Kit of 645 DF Camera Body, 80mm LS lens

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