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03-01-2013, 02:57 AM   #1
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What is the quality of this Sigma 5.6/400mm?

There are currently 3 Sigma 5.6/400mm legacy lenses listed in the data base. I can buy a 5.6/400mm APO, filter size 72mm, that is not in the data base, see attachment. It appears to be something in between the old Sigma 5.6/400mm APO MC and the 5.6/400mm APO (that is apparently available in an AF and MF version?) with 63" minimum focus distance.
Since I already own a Pentax M 5.6/400mm I'm only interested in the Sigma if the IQ is close the the latter mentioned variant. The Pentax 400mm is OK, except for serious fringing.
Anyone who has experience with a Sigma 400mm that resembles the one on the photo?

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03-01-2013, 10:22 AM   #2
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