Canon EOS R1 and a Super Telephoto DO Lens Coming in Late 2022 ?
According to latest rumors from CR, Canon currently is testing some super telephoto DO lenses, these DO lenses are: RF 400mm f/3.5 DO IS USM RF 400mm f/4 DO IS USM RF 500mm f/4.5 DO IS USM RF 500mm f/5 DO IS USM RF 800mm f/9.5 DO IS USM