Don't know about Nikon and Canon but I did found CA on the Tamron 180/2.5 I
had.
If I need a technically good lens I will get the Canon 70-200 IS, the test
results looked very promising. But there are some intangible quality on the
Zuiko, I will not replace it with anything else :-)
C.H.Ling
----- Original Message -----
From: "Hughes" <timhughes@xxxxxxxx>
Interesting comparing lenses of same vintage from Nikon and Canon.
Seems the Nikon 180mm f2.8 gets the nod, but the later version of Canon's
200mm FD mount has internal focus and is also pretty good.
Apparently they both also have high CA like Zuiko.
The IF is reputed to make the CA a little worse in the Canon,but the design
was a major makeover from the earlier version so hard to know if i was just
the increase in # of elements.
The Canon Fdn 200mm lens seems to be a little cheaper used, than both Nikon
or OM, as there were tons made.
Tim
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