canon FD aperture issue
I believe most adapters needed to be in open position b4 u put the lens in. After its fitted in all the way, you need to have the aperture in close position for the adapter control b4 the lens aperture can be moved properly. There was one that had the aperture control mechanism the other way around, so take out the lens and try both i open position first then closed position and see which one is the correct way.
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