Damn fine photo!
I'd misplaced this thread, thank you Georg for the resurrection.
Quote: And difference between DX and DS? Only coated? Schame?
estudleon - I haven't researched the lens formulas, so I don't know about that.
However, with the Yashinons:
DX - oldest M42, has the A/M switch
DS - newer, no A/M switch
DS-M - even newer, no A/M switch, multi coated
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The Vivitar T4 21mm f/3.4 lens has its embarrassing moments, but can do well with film cameras. Fuji 400H, Pentax ES-II.
I have a couple of new M42 Vivitars that I've only used with film - as soon as I got the split screen installed on the K100D my daughter took off with it... I got it back 600 photos later...