If you are a Canon EOS R system user and don’t want to spend ... and it’s also the smallest, and lightest 100-400mm lens currently available. In our review we found that the sharpness provided ...

For this review, the lens was tested on a Canon EOS 5DS R using Imatest ... In summary, the Canon EF 400mm f/2.8L IS III USM lens is a superb performer. You can view additional images in the ...