Originally posted by 2old4toys Hello, anyone tried 3D printed passive lens adaptors?
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My Mamiya CS to Canon EF adapter has a grainy texture, but it seems to have good integrity. I've owned it for a couple years and used it about 10 or 12 times. So far I haven't seen any obvious signs of flaking or disintegration. But, as suggested by earlier posters, if I used the adapter daily I'm sure there would be some wear.
A bigger issue is that the adapter won't lock into the camera mount. It's just held in place by friction - and a cautious hand.