- Front side - M72x1 male thread, M65x1 female thread, M58x0.75 fenale thread
- Rear side - Pentax 645 mount
- Added optical path - 12.83mm
Made of high quality aluminium alloy.
Main purpose of this adapter is mounting a Pentax 645 camera to Takahashi TOA-130 flattener.
Extra female M65x1 and M58x0.75 thread allows to add internal accessories (filter, for example) if necessary.