We have been instructed that Canon is engaged on an EF 100-400mm f/4.5-5.6L IS II USM equal for the RF mount, although the lens might not have an identical focal size vary.

We have been instructed on multiple event that Canon is engaged on an RF 200-500mm L zoom and that we might see it in late 2020.

The identical supply says that the long-rumoured EF supertelephoto zoom improvement was killed off “quite some time ago” as concentrate on new lens designs strikes to the RF mount.