Recently I got this zenith mir-1 37mm M42 SLR-lens in a goodwill shop. The old MIR-1 version not MIR-1B or MIR-1V
Accidently the frontelement came off while taking off the filter. I realized that the front element is a minus diopter something around -9. The best part was that its screw fits the filter-mount of a switar 10mm.
I haven't shot footage yet, but in the viewfinder it looks ok, no distortions, minor vignetting in the edges of Regular16, I guess heavy vignetting in S16. The focus has to be set near minimum.
Since I'm pretty broke at the moment it'll take some time until I can perform a test. So no guaranty that it works, but if you come across a MIR-1, also a very nice and sharp lens for DSLR or mini35, you might give it a try.
check the pic
Edited by Bernhard Zitz, 07 May 2008 - 06:33 AM.