Canon’s big white telephoto lenses are widely respected for their quality and performance, I can’t argue with many of the world’s most demanding professional sports and wildlife photographers. The EF-mount range includes some of the best Canon lenses for DSLRs, 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’s big guns, coupling a generous super-telephoto focal length with a fast f/2.8 aperture. This gives the double bonus of delivering a tight depth of field when you want it, and fast shutter speeds for freezing movement when you need to, even under dull lighting conditions. But we’ve been here before, as I’ll come to next.
