Knut Knut wrote:
 
> Looking at the available prime lenses I noticed that these are extremely
> closely spaced from ultra wide to 55mm, but then there is a jump, for most
> producers (Canon, Nikon) straight to 85mm, Pentax to 77mm:
 
        Focal lengths appear to be somewhat "non-linear", IMHO. That
        is to say that just a few mm's difference at the short end
        will make far more difference than a much larger difference
        at longer focal lengths. Look around for a "field of view"
        chart and check the differences. 

        Bill
 
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        Bill D. Casselberry ; Photography on the Oregon Coast

                                http://www.orednet.org/~bcasselb
                                [EMAIL PROTECTED]
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