Talk:C-mount

C-mount lens without aperture adjustments, etc

I'm curious where the writer has ever seen a C-mount lens without aperture adjustments. I have been collecting and dealing in this equipment for over 40 years, and have neither seen nor heard of such a lens. Since I'm currently writing the book on the early history of 16mm, in which material on the evolution of mounting systems will be included, such a lens would be of great interest. Are you sure you don't mean focusing lenses? Many C-mount lenses were made in fixed focus, but there were none every produced without aperture controls. The C-mount itself indicates a level of sophistication that would preclude such an arrangement.

I am reluctant to edit the main entry because I'm not sure what the writer has in mind, but he seems to be writing in English as a second language, so there are a few things that lack clarity. I'm not sure what he means by survey cameras; perhaps surveillance cameras? It would also be well to define or describe the CS mount that is mentioned, as it is one I have never heard of, though if it is new and limited to surveillance use, that would not be surprising. In any event, it needs to be clarified. Past reflections

Thank you for bringing this up. Here is the history of the page; at first it may seem that it was written by two people, but it's clear that one of them merely added a template and that the text is actually by one person.

If you're writing a book on the early history of 16mm you may well be in a better position to write an article here. (As for me, I know little about C-mount lenses, but even I am surprised by the statement that "f1.7, f1.8 and f2.8 are the most common standard lens speeds of still cameras": which kind of still cameras?) Skipping what's here now and starting afresh would be fine.

Certainly there would be interest here in the result, what with µ4/3 and the C-mount Kenko (still) camera. (Eventually, a little about image circles would help, but if your interest in 16mm means that you're not much interested in the margin by which image circles exceed the 16mm frame, don't worry; perhaps somebody else will come later to add this information.) Zuleika 08:48, 29 March 2011 (PDT)

Yes, I would also take exception to the paragraph on lens speeds. It's pretty much nonsense. When I get a few minutes later, I'll do some editing and try to get it back to a more realistic description. I don't see the 4/3 applications as being particularly relevant to a Camera-wiki description of C-mount, since the digital adaptaion is a late arrival in what amounts to a fad application, and has nothing to do with the original purpose of the mount or the lenses bearing it. The silly prices that some lenses were bringing for awhile have already started collapsing, so I expect C-mount lenses will again be accessible by collectors before too much longer. Past reflections