Funny, I was just looking at some old Moder Photo tests of the Vivitar
400/5.6 TX lens. First of all make sure that you can find a TX adapter for this
(T4
was a different system). The tests show resolution from 37 to 47 l/mm center
and 26 to 42 l/mm edge. Contrast was mostly high in the center and high to
medium at the edges. At the corners there were strong red/green chromatic
aberrations. On the whole an average lens. I never tried this lens but it was
probably better than my regular Vivitar 400/5.6 which below average, a Sigma
400/5.6 APO Macro, which was a very good lens. But none of these can hold a
candle
to the Tamron 400/4, which is an excellent lens. Keh has a couple of these
now for one-half of what I paid for mine.
Warren
In a message dated 9/1/04 6:47:02 PM Pacific Daylight Time, listar@xxxxxxxxxx
writes:
Subject: [OM] Vivitars
Date: Wed, 1 Sep 2004 22:09:57 +0200
From: iwert@xxxxxxxxxxxxx
Hello all,some advice needed:There are a vivitar 90mm f2.5 and 400mm f5.6 T-4
or TX lens for sale in my neighbourhood.The total for 125 Euro... I like them
both, the 90 most... Has anybody of you used these beasts?(and an
opinion?)Iwert.
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