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Re: [OM] Tamron SP 90/2.5 - 1st step on the slippery slope?

Subject: Re: [OM] Tamron SP 90/2.5 - 1st step on the slippery slope?
From: "Terry and Tracey" <foxcroft@xxxxxxxxxxxxxxxxxxxxxx>
Date: Sat, 29 Jan 2000 15:24:46 +1100
> > If you mean the 90mm f2.5 SP Macro, it's sharp as a razor.  The only
down
> > side I see is it weighs a ton.  That never stopped me from mounting it
on my
> > OM1 though.  =B^)
>
> Yes, that's the one, sorry to all about the typo.  Looks like this would
> be a good acquisition then, although I'll have to get a set of auto
> extension tubes to make full use of it :)
>

It is virtually impossible to get good quality from infinity to 1:1.
Optically, 1:10 to 1:2 is similar from 1:2 to 1:1. Lenses that give infinity
to 1:1 are compromising during their magnification.

Foxy


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