Tamron or Sigma 2.8/17-50?

Started Oct 5, 2013 | Discussions thread
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fotobert
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Tamron or Sigma 2.8/17-50?
Oct 5, 2013

I have a strong LBA for such a lens, especially for portraits "with context".

Tamron:

slightly better optics, correct rotation of zoom & distance ring, cheaper, lighter

Sigma:

better CA, HSM, OS, better coating, less sample variation (?)

Any suggestions from your side, or even advice from someone who owned both?

THX

Albert

 fotobert's gear list:fotobert's gear list
Pentax K-5 Tamron SP AF 70-200mm F/2.8 Di LD (IF) MACRO Pentax smc DA 18-135mm F3.5-5.6ED AL [IF] DC WR Sigma 70mm F2.8 EX DG Macro Sigma 8-16mm F4.5-5.6 DC HSM +10 more
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