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PostPosted: Tue Jan 07, 2014 12:57 pm 
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Joined: Sun May 25, 2008 12:48 pm
Posts: 7997
Location: UK
18-200mm F3.5-6.3 DC Macro OS HSM | Contemporary
http://www.sigmaphoto.com/product/18-20 ... ntemporary

50mm F1.4 DG HSM | Art
http://www.sigmaphoto.com/product/50mm-f14-dg-hsm-art

The new 50mm is very interesting. All new design. Longer to cram in many more elements, but still lighter than the old one. It will be one to watch as it could be the best 50mm. I'll leave it open for people to debate what "best" means to them, but for me, I'm hoping for decent resolution across the frame, controlled off-axis aberrations and in particular low longitudinal CA. dpreview has some text suggesting these conditions will be met, but I've not managed to verify those statements elsewhere yet. If all this holds out, I would go as far as to call it the Otus for the masses.

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Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.


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PostPosted: Tue Jan 07, 2014 1:25 pm 
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Joined: Sun May 25, 2008 12:48 pm
Posts: 7997
Location: UK
http://www.sigma-photo.co.jp/english/ne ... php?id=408

Found it now, above on Sigma's Japan site they go into the aberration corrections promised by the lens.

_________________
Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.


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