The Canon RF 70-200mm f/2.8L IS USM is a flexible telephoto zoom. The constant f/2.8 maximum aperture suits difficult lighting conditions. A new optical design minimises aberrations throughout the zoom range.
The USM focus system delivers fast, near-silent autofocus. An Image Stabiliser compensates camera shake up to five stops. Thus assisting the production of sharp images. Weather-sealing comes standard. In addition, a fluorine coating protects the front and rear elements.
In conclusion, the Canon RF 70-200mm f/2.8L IS is a lighter, sharper update.