The following lenses are compatible with the Push Auto Iris and Auto Iris operations of the EOS C300 Mark II EF-S 10-18mm f4 .5-5.6 IS STM EF-S 18-55mm f3.5-5.6 IS STM
Compatible lenses 300mm f/4L IS USM EF 400mm f/2.8L IS USM EF 400mm f/2.8L IS II USM EF 400mm f/4 DO IS USM EF 400mm f/4 DO IS II USM EF 400mm f/5.6L USM EF 500mm f4 L IS USM EF 500mm f/4L