On Friday, 30 November 2012 at 18:15:44 +0100, Erik Krause wrote: > Am 30.11.2012 00:42, schrieb Greg 'groggy' Lehey: >> I seem to be having difficulty making myself clear. My apologies. To >> spell it out: >> >> - The Olympus 8 mm lens, designed for Four Thirds sensors (21.63 mm >> diagonal), covers an angle of 180° along this diagonal. >> >> - The Samyang (I think that's the original manufacturer), also 8 mm, >> covers an angle of 139.3° along this same diagonal. >> >> And as I said, the difference in angle can't be explained by >> distortion alone. > > The Samyang follows a different mapping, where the outer regions are not > compressed that much: > http://michel.thoby.free.fr/SAMYANG/Early%20test%20report.html
Thanks. That's roughly what I had been expecting. It's also interesting to note that the various rebadgers can't even agree on a focal length for the lens. Greg -- Sent from my desktop computer. Finger [email protected] for PGP public key. See complete headers for address and phone numbers. This message is digitally signed. If your Microsoft MUA reports problems, please read http://tinyurl.com/broken-mua
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