I recently acquired this camera from a gentleman who has done the conversion for a certain project where he needed a pinhole camera (at least that is what I was told). Cosmetically it is in pretty good shape, film advance is good. Shutter speeds: The B is fine, 1, 1/2 and 1/4 sometimes get stuck. I mean the shutter stays open longer then it should. I do not have any test equipment to test, but to my eye and ear, higher speeds look and sound correct. Frankly I don't even know (I have never used a pin hole camera myself, I am not talking about shooting at 22, I mean an actual pin hole camera), so I don't know what else is there to be checked. To make things easier: if you are the buyer, you are welcome to return it for full refund within 2-3 days upon receipt (you will be responsible for return shipping fees please), make sure that I receive the same camera in same condition please and I will provide full refund. If you don't contact me 3 days upon receipt we will assume you are happy with it and this is an as is deal. Once again, do not hesitate to contact if you have any concerns or questions please (I have asked specifically, the gentleman didn't want to share who actually did the conversion).