The Canon EF 600mm f/4L IS II USM lens is a full-frame, fast, super-telephoto lens compatible with Canon EF cameras and adaptable to Canon RF cameras with the help of a mount adapter.
The Canon EF 600mm f/4L IS II USM lens is a full-frame, super-telephoto lens compatible with Canon EF cameras and adaptable to Canon RF cameras with the help of a mount adapter. This lens is compatible with the Canon Extender EF 1.4x III
.
Please note that this lens has been superseded by the Canon EF 600mm f/4L IS III USM
which is significantly lighter.