It is very easy to switch mounts; you just need a Tamron Adaptall-2 OLympus
adapter, the one that says 'OL' on the mount instead of 'for Olympus OM'
('OL' version is essential for OM-3/4, unless you modify the older version
with epoxy).
They sell reasonably often on *Bay, can be expensive though.
The 85-210 Tamron is notorious for lack of sharpness; look instead for the
70-210/3.5 SP (see results in Gary's tests); the 70-210/3.5 SP (model 19AH)
was in Tamon's model lineup from 1983 up to 2000/2001, so some are newer
than others. I expect that you can still find it new in USA. This model is
only a little slower than the 80-200 (1/2 stop).
Roger Key
Is this available used? If I find one in a Nikon mount, is the correct
mount for an OM-4 available? I have a Zuiko 100/2.8, 135/3.5, and 200/4
but
the idea of having a sharper (albeit much larger) alternative available
when
I can carry it, is attractive.
For the available darkness stuff I like best, this may be a good way to go.
I'm also considering the Zuiko 180/2.8 and Tamron 180/2.5 but frankly, the
ability to crop with a two-touch zoom in this range is something useful
that
I miss.
I got rid of the 85-210 f/4.5 (Tamron, circa 1974 also) because of a
perceived lack of sharpness.
It's completely wierd that the 100/2.8 did so poorly on Gary's testing.
It's the sharpest lens I've owned. By his reconing, it's not as sharp as
the 50/3.5 or 135/3.5 or 200/4. That's completely the opposite of my
experience. I am a firm believer in the scientific method. "It baffles
me," he bellowed. (photo puns)
Lama
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