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Forum: Pentax Full Frame
08-08-2018, 08:13 AM
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Are we talking about wide-angle here, or UWA? In the days of manual focus film, I heard a lot about 28mm, and some about 24mm, but little wider than that - which is probably why few used lenses are wider than that.
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Forum: Pentax Full Frame
06-09-2018, 06:54 PM
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]There are reports that the Sigma 10-20 vignettes in the 10-15 range, but works fine in the 15-20 range {and the price is reasonable}. From experimenting on my old film camera, I'm guessing it will be less rectilinear on FF than on APS-C
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