Tends to be? I would say that if it is not, it is not traditional. BTW 85-105
would have been way too long for a portrait lens before the 35mm SLR became the
homogeneous factor. The old rule of thumb was twice the long side of the
negative which would be 72mm. In fact I have always thought that there should be
a 70mm in the 35mm lens set so there would be a square root of two progression.
graywolf
http://www.graywolfphoto.com
"Idiot Proof" <==> "Expert Proof"
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Traditional tends to be homogenous.
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