Lenses that support changes in the AF speed Extender 1.4x EF-S 10-18mm f /4.5- 5.6 IS STM EF-S 15-85 mm f/3.5-5.6L IS USM EF-S 18-55mm f/3.5-5.6 IS STM EF-S 18-135mm f/3.5-5.6 IS STM EF-S 55-250mm f/4-5.6
EF400mm f/5.6L USM Marketed May 1993 Lens Construction (group) 6 Lens Construction (element) 7 No. of Diaphragm Blades 8 Minimum Aperture 32 Closest Focusing Distance (m) 3.5 Maximum Magnification (x) 0.11 Filter Diameter ( mm ) 77 Maximum Diameter x Length ( mm ) 90 x 256.5 Weight (g) 1,250
Specifications Focal length/Aperture 200-400 mm f /4.0 280-560 mm f / 5.6 Lens Construction 20 groups, 25 elements 24 groups, 33 elements Minimum Aperture