while the growing range of RF-mount options widens the remit for the best Canon telephoto lenses for both DSLRs and EOS R-series mirrorless cameras. The RF 400mm F2.8L IS USM is the fastest of ...

Canon has some truly fabulous lenses in their EF and RF mounts. From fish-eye to tilt shifts to super telephoto zooms, Canon’s lenses are built on character and incredibly reliable, even if they can ...

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 ...