Zoom lenses EF 16-35mm F2.8L USM EF 16-35mm F2.8L II USM(*3) EF 17-35mm F2.8L USM EF 17- 40 mm F4 L USM EF 20-35mm F3.5-4.5 USM EF 24-70mm F2.8L USM EF
Zoom lenses EF 16-35mm F2.8L USM EF 16-35mm F2.8L II USM(*3) EF 17-35mm F2.8L USM EF 17- 40 mm F4 L USM EF 20-35mm F3.5-4.5 USM EF 24-70mm F2.8L USM EF
Type of extender AF availability EXTENDER EF 1.4x When any of the extenders shown to the left are mounted on a lens with a maximum aperture darker than F4 , AF cannot be used. EXTENDER EF 1.4x II EXTENDER EF 1.4x III EXTENDER EF 2x When any of the extenders shown to the left are mounted on a lens with a maximum aperture darker than F2.8, AF cannot be used. EXTENDER EF 2x II EXTENDER EF 2x III