Canon has done a great job of filling out the supertelephoto options for the RF mount, but there is one glaring omission in the line-up thus far, and that’s an RF version of the EF 500mm f/4L IS USM II. Canon has historically upgraded the 400mm f/2.8 and 600mm f/4 lenses at the same time, … Continue reading Will the EF 500mm f/4L IS USM II replacement for the RF mount be a zoom?