View single post by Eric
 Posted: Sat Apr 9th, 2016 05:15
Eric



Joined: Wed Apr 18th, 2012
Location: United Kingdom
Posts: 4187
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Every ultra wide zoom I have used suffers from less than ideal performance at the widest setting. I bought the Sigma 10-20 for hotel bedroom shots and never needed (or wanted) to use it at 10mm. 12mm was wide enough even for the smallest hotel room interior shots. At 10mm you started to loose edge fidelity. I bought the Sigma12-24 ....and discovered the same max wide quality drop.

So the point is...a bit like the wisdom to stop down a lenses aperture for best quality, I would recommend backing off the zoom. Putting it another way...the 12mm on the 11-16 will probably be better than the 12 on the 12-24.
Just my 2cents



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Eric