I always though low price was the third party specification edge.
Winsor
Long Beach, California, USA
On Aug 19, 2006, at 3:41 AM, Chuck Norcutt wrote:
> I'm sure you're correct that it's the Sigma lens. The specs are too
> close to be otherwise. The third party lens producers have got to
> have
> some sort of specification edge over the OEM's. Could be that the
> focal
> length difference is the "edge" for Sigma. Could also be that Olympus
> spec'd it that way to avoid more performance fall off at the long end.
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