Sigma 105mm vs. Tamron 90mm

Started 5 months ago | Discussions thread
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clarnibass
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Sigma 105mm vs. Tamron 90mm
5 months ago

Hi

I'm considering the Tamron 90mm macro lens (old version without VC) and just now noticed there's also a Sigma 105mm macro, an older version without OS (I only knew about the newer OS version).

I usually use a Nikon 55mm f/3.5 manual focus lens and want another, longer macro lens. I think the extra 15mm might be helpful, especailly with these lenses which extend when focusing.

My impression is that both lenses are ver ysharp, but the Sigma might actually be sharper?
Are there any other significant (or not so significant) differences between these lenses?

Main two things I'm interested to know are:
1) What distance is the subject from the end of the lens at 1:1 magnification?
2) How good is the manual focusing in comparison with a lens like the 55mm MF Nikon I mentioned?

Thanks

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