Yes, do that as you tell. But don't forget to try several distances among
close-to-medium focus. The one I had on test was excellent around 60-70mm,
awful around 1-1.5m and then good beyond that distance.
Dario
----- Original Message -----
From: "Larry Colen" <l...@red4est.com>
To: "Pentax-Discuss Mail List" <pdml@pdml.net>
Sent: Saturday, April 10, 2010 1:11 AM
Subject: Is there a quick and easy test for the 16-50 decentering problem?
Would it be something like take a picture of a flat surface (brick wall)
and look for one corner being out of focus?
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