I've converted a 135mm F2.5 FD lens to PL mount and added permanent gears to it. For the 50mm F1.4 I just added permanent gears since the optical placements made it impossible to remount to PL. Both lenses have been de-clicked and apreture arm that's normally at the camera end of the lens have been removed. The 135mm lens works ok, not as smooth as one would like but it is in working order and the lens itself looks great. The 50mm works great very smooth for the most part, but has a color cast to it. 

My friend had a broken Canon zoom lens and I decided to have a little experiment. It took maybe about 3 hours to make the measurments and draw up the design in Solidworks. The printing took maybe 16 hours total for all the individual parts, couple parts had to be reprinted since my measurments were not as accurate as they should've been hehe. 

Originally I just set out to make a dumb EF mount so I can use my one canon lens with my Epic. The project ended up with FD mount, a PL mount, and on top of that directors viewfinder.

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