Looking at Dario Bonanzza's samples with different lenses I see one called an SMC F 70-210 zoom. Is this a manual aperture stop down metering lens? I've read about the A and FA lenses on Dimitri's KMP site but I don't remember a lens with just the SMC F designation. Also, is this a 42mm screw mount or a PK?
Thanks,
John `:^ )
