Example of Sigma 17-50 OS at 2.8

Started Mar 17, 2012 | Discussions thread
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Junior MemberPosts: 41
Re: Example of Sigma 17-50 OS at 2.8
In reply to RobbieV, Mar 21, 2012

I've had this lens since last summer and like it a lot, but I find the corners to be very very soft between about 17mm and 40mm wide open. Stopped down to F4 it is uber sharp all over and F2.8 is tack sharp at 50mm.

Real word usage, it's not that important though since your subject will either not be in the corners or you can just stop down a little bit - so this has replace my Nikon 18-200 super zoom + 35mm F1.8 combo as my walk about lens kit.

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