[EMAIL PROTECTED] wrote:
>
> The more commonly found Vivitar 100/2.8 and Vivitar Series 1 105/2.5 are
> virtually identical, all made by Kino Precision; I'm not sure why they bear
> different maximum apertures and focal lengths.
One of the best macros in this focal length range is the early Vivitar
Series 1 90/2.5. It's a heavy workhorse of a lens, but extremely sharp.
It comes with a 1:1 optical adapter and can sometimes be found on ebay
for around $150.
Paul Stenquist
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