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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.
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Highlights

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