Canon RF 1.4x Extender

High-precision AF using the EOS R's Dual Pixel CMOS AF and the lens's built-in IS can also be utilised, making full use of the performance of the master lens to expand the telephoto range.

Works with Canon: Lens Compatibility RF 100-400mm f/5.6-8 IS USM
RF 100-500mm f/4.5-7.1L IS USM (can only be used within 300-500mm range)
RF 400mm f/2.8L IS USM
RF 600mm f/11 IS STM
RF 800mm f/11 IS STM
RF 600mm f/4L IS USM