Modifying K&F Concept Canon FD-Sony NEX adapter for Canon FL 35mm F2.5 and FL 58mm F1.2 lenses. 

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Modifying K&F Concept Canon FD-Sony NEX adapter for Canon FL 35mm F2.5 and FL 58mm F1.2 lenses.
The Canon FL 35mm F2.5 and Canon FL 58mm F1.2 lenses (and maybe others) have uneven surfaces on the rear of the lens that makes them impossible to mount to many adapters. Here is a way to modify a adapter to fit these lenses. The modification is reversible. This modification can work on many brands of adapters as well as adapters with various camera mounts.
EP07
Music :
Above_Planets
By:
Patrick Patrikios