I took and attached some (quite awful) pics to show the lens and mount end... no thread or anything. I don't know what a C mount is.
I did a test with the 40d on live view holding the lens in front. I was able to achieve focus at varying distances of 1-2cm from the front of the bayonet mount and the rear of the lens so an adpator should be possible. That said I don't think it will useful with a DSLR because it was severely vignetted. I'm not sure what film size these cameras fed, but it must have been a lot smaller than a typical DSLR chip size.
