The f2 50mm only stops down to f16 I believe. The f3.5 goes to f 22. Someone
posted that the smallest min aperture should be no less than focal length
/4. Which gives a 50mm a min of f12.5. I've never noticed any loss of
definition with the 50mm f3.5. If you already have a 50mm, go the 90mm. I'm
probably just raving now, so I'll stop.
Foxy
>I am thinking about getting a macro lens. My original thought was
>that I would buy the 50mm f2 and use it as my normal lens, too. But
>as I read various e-mails here, the 90 mm f2 gets more press. What
>are the advantages of the 90 mm over the 50 mm. My subjects would
>probably be mostly flowers and and occasional butterfly or
>grasshopper on the plants.
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