In my continuing search for the perfect, do everything, lens I just got
a Tamron 28-200/3.8-5.6. Open it up. Looks great, lnib. Grab an OMPC
body off the shelf, put the lens on and go outside to look through it.
In middle to tele focal lengths, everything looks fine. Zoom down to
28mm and things look fuzzy. Check more closely and find that I can't
focus to infinity at the wide end. Closer stuff focuses fine. I just
can't find anything that seems wrong with the lens, so I go in and grab
an OM-4. Ah, now focus is fine at all fls. Try out another OMPC, fine.
Try a 24-40 zoom on the first OMPC, won't focus to infinity.
So before I dig into this, anybody know why a body would focus to
infinity with long focal lengths and not with short ones? That is for
shorter fls, the lens goes to the infinity mark, where the viewfinder
image of distant objects on other bodies is in focus, but the view
finder on this body isn't in focus.
Moose
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