Sigma 17-50mm F2.8 OS HSM
Is there any word on this lens? I'm looking for replacement of 18-55mm kit lens. At first I considered buying Sigma 17-70mm and waited for new HSM OS version. After reading some evidence about blur at both extreme ends I'm moving towards Tamron 17-50mm. The only card in a sleeve left is newly announced Sigma 17-50mm F2.8 OS HSM. I'd really appreciate any info on this lens: Pentax mount release due date, first impression, first reviews, etc. May be somebody in Japan have tried it already?
Thank you in advance
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