The Canon RF 400mm F2.8L IS USM and RF 600mm F4L IS USM are must-have lenses for professional photographers shooting sport, wildlife, news and aviation with Canon's EOS R System range of full-frame mirrorless cameras, including the EOS R3, EOS R5 and EOS R6. Both lenses feature Canon's latest lens technologies and, for the first time ever, provide Canon EOS R System photographers with a choice of two dedicated super-telephoto lenses.
Both lenses are closely related to their EF stablemates – the Canon EF 400mm f/2.8L IS III USM and the EF 600mm f/4L IS III USM. "These EF lenses were developed alongside the first RF lenses, so they share some of the same electronics, components and ideas," explains Mike Burnhill, Professional Imaging Product Specialist at Canon Europe. But the latest lenses benefit from key enhancements made possible by Canon's innovative RF mount. If you're a professional sports or wildlife photographer, here's why the Canon RF 400mm F2.8L IS USM and RF 600mm F4L IS USM should be your new kitbag essentials.