I was just wondering if anybody knows about this lens? It was given to me and I can't find much about it.

Chelsea: This sounds like you have a lens that was intended for use in enlargers or copy cameras, yours may not have a shutter and just an f/stop adjustment, say from f/4.5- f/16. Some people are adapting them to didgital cameras for special effects both for still and video.

Get all the info off the lens and google it, more info in your search the better.. Make, Model, focal length,(210mm F=4.5 etc.) see what you come up with. Good luck..

Thank you Alex, for replying. It was very helpful. It is actually an f/4.5. I thank you very much and I will do more research.