At 11:02 PM 4/15/2005, Mark wrote in part:
>I'm not saying it's a great lens, since there is some pretty noticable
>pincushion distortion in the middle focal lengths, but it's not as bad of
>a lens as the Cosina 35-70.
This is the primary reason I placed the "Cosina" 70-210 a definite cut
below the 75-150/4. My observation at a Brick and Mortar camera store in
puting one on the front of an OM-2000 when they first came out parallels
Gary Reese's testing; noticeable pincushion/barrel distortion. It's an
optical characteristic I freely admit I'm finicky about and it seems to be
a common problem with all but the very best zoom lenses. Although the
75-150/4 likely had at least a little, it was never noticeable in the
architectural shots I made with mine, and I never worried about it. To me,
lackluster contrast is much less problematic to cope with than avoiding
noticeable barrel/pincushion distortions in the field . . . depends some on
type of subject material and how noticeable it makes them.
-- John Lind
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