Premium Member Duncan Brown Posted June 11, 2023 Premium Member Share Posted June 11, 2023 I'm forever picking up on eBay odd bits and pieces of cameras I own, because you just never know what project I might get up to someday where it would be handy to have a spare/sacrificial copy of something. So when I saw this standard NPR CA-1/C-mount plate for next to nothing a while back I snagged it. But when it arrived, I discovered something very curious. Neither of the mounts has had its "final machining operation" done! There are no threads in the C mount. There are no bayonet slots in the CA-1 mount. What the heck?! It sure looks like it's been mounted to a camera and spun around. But there is literally no way to secure a lens to this. Did it escape the factory in this condition and then get swapped out decades ago under warranty? Is there some possible circumstance not occurring to me where an end user would WANT a blank lens mount so that they could do the final machining themselves in some special way?! Duncan Link to comment Share on other sites More sharing options...
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