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ALPA Back-Adapter XF / MA645 Mk V


ALPA Back-Adapter XF / MA645 Mk V

Product Description

ALPA backadapter XF / MA645 Mk V - for Phase One IQ3 / IQ4 with the XF / Mamiya 645 AFD interface, adjustable with shim kit, max. +/- 3/10 mm in steps down to 1/100 mm. This unique back adapter features in addition to the usual adjustability of all ALPA digital back adapters a shimable lower bracket. For digital backs only.

The only constant in life is change. We have revived the elaborate AB adapter to compensate for the occasional mechanical differences between individual back generations. This adapter allows the lower adapter hinge/bracket to be shimmed.

The Mk V version of our digital back adapter for XF (IQ3 and IQ4) comes with mini-shims that allow individual adjustment to each back.


  • Shimable lower back hinge/bracket for a perfect fit
  • Improved inner reflex coating
  • Unified version for IQ3 & IQ4 digital backs from Phase One

Introduced in 2004

ALPA introduced adjustable adapters for digital backs at Photokina 2004. Since then, ALPA adjustable adapters are shimable in a range of 1/100 mm to 3/10 mm. Each such adapter is provided with the respective shims.

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free, courtesy of ALPA
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Current Product
ALPA backadapter XF / MA645 Mk V
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