The photos show my new Tominon/Polaroid 127mm f4.5 lens mounted on my Bronica S2A. I used one of the 57x1mm adapter caps made by my brother-in-law Marvin. Due to the large size of the Copal shutter and the frame at the front of the bellows I had Marvin make me a short extension tube. This allows access to the controls and allows cable releases to be threaded in.
I chose the length of it such that the lens can be focused to infinity on the bellows or on the normal focusing mount.
Here is the lens before mounting.
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