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Forum: Pentax SLR Lens Discussion
07-11-2016, 06:46 AM
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I have an old Tokina 28mm f2.8 lens that I bought back in the 80's. Didn't have much money so I probably went for cheap. This is not an RMC as some are. I'm not sure what the RMC stands for but if I had to guess I'd say it has to do with the coating. My primary question is this. On the aperture ring next to f22 there is an A (colored green) and I was wondering what that A represents. There is a small button on the aperture ring that, when depressed, will allow you to rotate the ring to the A position and it will remain locked on the A once you've rotated it to line up with the dot. I don't believe I've shot this lens in more years than I can remember but I'm going to give it a test run on some black and white film soon. I hope its not too big a wast of a few frames of film.
Thanks in advance to anyone who might choose to make worthwhile comments on this subject.
Regards
(Long live film)
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