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Considering a 17-40L....questions!

Started Aug 21, 2014 | Discussions thread
RS_RS Senior Member • Posts: 1,788
Re: Considering a 17-40L....questions!

I have had a 17~40 since film days, and am currently considering upgrading it to the new 16~35/4IS. The 17~40 is a pretty good FF UWA lens, but has poor corner performance at wide apertures at the wide end. The corners improve a lot on stopping down, so for landscape and architectural work this is not a big problem. However, the thing to remember with Canon UWA lenses is that the use of Digital Lens Optimizer within Digital Photo Professional dramatically improves performance.

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