Graham Clark has completed a shootout between the latest Canon ultra wide angle zoom, the EF 16-35 f/4L IS and the always dependable and very popular EF 17-40 f/4L.
There are tons of RAW files and video to whet your appetite if you happen to be undecided between the two lenses, or if you're not sure you want to “upgrade” your EF 17-40 f/4L. I found this to be about the most thorough review and comparison between the two lenses, as well as showcasing the EF 16-35 f/4L IS.
Graham says in his conclusions
“The inclusion of Image Stabilization, incredible corner sharpness and bar-none the best CA performance on corners I’ve ever seen put the Canon 16-35 F4 IS at the top of a very short list of must-get Ultra-Wide Angle Zooms. If you’re a Canon or Sony landscape and/or a travel photographer in the market for a ultra-wide angle zoom, and/or you’re looking to upgrade whatever you currently have, this is the one to get.”
Read the full shootout at GrahamClarkPhoto.com
Canon EF 16-35 f/4L IS $1199: Amazon | B&H Photo | Adorama
Canon EF 17-40 f/4L $839: Amazon | B&H Photo | Adorama