C-mount lens question.

[sormi]

I don't know much about camera lens. Could someone answer this question.

 

 

Does anyone make a c-mount lens, that the lens is 25mm at the mount? I see a lot of 4mm, 8mm and 16mm but no 25mm. If so can you post some links.

 

Thanks

[Guest Ian Marks]

This question probably should have been posted to the 16mm forum.

 

I'm not sure what you mean by "25mm at the mount." The mounts on C-mount lenses (specifically, the part that screws into the camera) conform to a standard established back in the 1920's or 1930's. The mounts don't come in different sizes - the threads are all an inch across.

 

If you were referring to the focal length of the lens, you shouldn't have any trouble finding a C-mount lens that has a 25mm focal length. It is probably the most common focal length out there, as it is nominally "normal" for 16mm.

 

Hope this helps.

[Don Davis]

What does the "C" stand for in "C-mount"?

 

Don Davis

Novice DP

Los Angeles