Once again, Canon pushes the boundaries with its RF lens mount, and this time gives us a zoom lens that goes further than anything else before it. The 200-800mm zoom range covers everything from grassroots soccer to distant tiny subjects such as birds. And when it’s paired with a camera equipped with subject-detection autofocus and in-body image stabilization, like the EOS R7, there’s little this super-telephoto lens can’t do. The major deterrent for serious action photography is absolute image quality at the 800mm setting, and an (understandably) modest f/6.3-9 maximum aperture, which means you're limited to fair weather to freeze fast-moving action. But for many, that’s a sacrifice worth making for such a long reach.
Unbeatable reach; Sharp detail especially at its wider end; Lovely build quality and balance
Maximum aperture restricts action shots to bright light; Pronounced cat's eye bokeh