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This lensplate allows you to mount lenses from the Mamiya-645 series, in combination with the WRS series camera.

This combination will work with those digital backs that have a built-in ES-shutter (sensor activated electronic shutter), which work as shutterless digital back, such as the PhaseOne IQ3-100 and the IQ-4 series.
The aperture of the lenses can be set manually, the shutter (if applicable) needs to stay open.
The practical use of lenses may be limited to those that have enough image circle coverage for the used digital back when using shifts.

The use of Mamiya 645 lenses from the ProTL system allows for a manual aperture setting.
The use of the later lenses of the DF and XF system is mechanically possible, but there is no communication between the lens and the camera body. This means that electronically set apertures can NOT be controlled.

note: Mamiya lens not included.
  • The WRS-M645 accepts all lenses that fit to the Mamiya 645 ProTL series.
  • The WRS-M645 accepts lenses that fit to the PhaseOne DF and XF series but without aperture control.

Note that this option does NOT work with digital backs that require a lens with a shutter in order to synchronise the back to be triggered with the lens.The leaf shutter inside the blue-ring lenses can not be operated with this adapter.

This product is compatible with the PhaseOne XT system / No data transfer
total height
108 mm
85 mm
61 mm
250 gram

Note: there is no electronical connection between digital back and lens on this adapter.

Company & Policy

Cambo Fotografische Industrie BV is registered at the office of the Chamber of Commerce in Zwolle, The Netherlands under registration nr. 05032155.

Delivery terms

Unless otherwise agreed, Cambo delivers at incoterms EXW. On all sales the METAALUNIE conditions will apply, unless otherwise agreed.
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Contact us

Haatlanderdijk 45 / NL-8263 AP  Kampen
P.O. Box  200    /   NL-8260 AE  Kampen
The Netherlands

tel: +31 (0) 38 3314644
fax: +31 (0) 38 3315110