Heeyyy... pretty cool, David. That's my Most useful Fact Learned This Week. :)

I'd suspect the increased edge effect might go really well with Pyro development. Do you still use the lens? If I understand your description, you took a good Ektar from a bad Medalist and used a gutted Tokina lens as a mount and focusing mechanism? Were you able to retain infinity focus? That project has me thinking all sorts of nasty things about trying stuff with ancient brass grab-bag lenses and my F1.

In fact, if memory serves, isn't there a LTM -> FD mount adapter? Wouldn't it be fairly straightforward to use not-so-comparitively-ancient lenses like my Jupiter 8 on the F1 with an adapter?

I wonder if that's legal in Texas?