EF400mm f/5.6L USM Other professional features are: a built-in lens hood with locking mechanism, dual manual focusing rings, a removable ring-type tripod mount, full-time manual focusing, and focus range selector for 3.5m to infinity or 8.5m to infinity. Extenders EF 1.4 X and EF 2X can be used with manual focusing.
Extenders With Extender EF 1.4 x II attached to the lens, only manual focus is possible. When shooting with EOS A2/A2E/5, use -0.5 step exposure compensation when using extender EF1.4x II, and use -1 step exposure when using extender EF2x II.
Extenders Only one Extender can be attached to the lens and camera. If you use an Extender on the lens mounted on a EOS A2/A2E/5, set the exposure compensation to -1/2 stop for the EF 1.4 X II or -1 stop for the EF 2X II.
Lenses that support changes in the AF speed USM EF 400mm f/4 DO IS II USM EF 11-24 mm f/4L USM EF 50mm f/1.8 STM EF 35 mm f/ 1.4 L II USM EF-S 18-135mm f/3.5-5.6 IS USM EF 24-105mm f/4L IS II USM EF 70-300 mm f/4-5.6