By: Pedro Callisaya Originally published on Nov 18, 2016 This video tutorial shows how to modify a FDn Lens to use it with EF Cameras. Parts needed: FDn to EF mount http://shpws.me/MZuG Aperture Arm 3mm http://shpws.me/MZvG Aperture Arm 10mm http://shpws.me/MZvI … Continue reading Canon FD to EF Lens modification