Canon EF 17-40mm f/4L USM Lens Tested on the EOS 5Ds R and 7D Mark II

Image quality results from the EOS 5Ds R and EOS 7D Mark II have been added to the Canon EF 17-40mm f/4L USM Lens Review.

This lens has been in Canon's lineup since 2003, but still represents a decent value. The comparison needed to be made is the Canon EF 17-40mm f/4L vs. 16-35mm f/4L IS lens. The 16-35 is more expensive, but ... worth the difference for most.

B&H has the Canon EF 17-40mm f/4L USM Lens in stock with a $100.00 instant rebate.

B&H has the Canon EF 16-35mm f/4L IS USM Lens in stock, also with a $100.00 instant rebate. Now would be a great time to add this excellent lens to your kit.