I just purchased a large lot of cine lenses. Most are pretty straightforward - either old PL or C mounts; but there are a couple of head scratchers. I have a Kinoptic Anamorphic F:2 Focale 75mm lens. The odd thing is that is doesn't have a focusing mechanism. Below the aperture ring is a screw on 1.5" (approximately) barrel followed by another short ring (see attached photos. The threaded section measures slightly under 35mm.
Does anyone know what's up with this lens? Is it some sort of universal mount that screws into the focusing helical of one's choice?
Thanks!
John