Tote Box, Color Coded, Overall Length (In.) 20, Overall Width (In.) 15, Overall Height (In.) 5, Overall Depth (In.) 5, Color Black, Handle Yes, Handle Type Comfort Curve(TM), Handle Color Black, Material Durable Resin, For Use With Mfr. No. N4401203, NSF STD 2, Different Colors for HACCP Zone Use '.
The EF 100–400mm f/4.5–5.6L IS II USM lens delivers a superb combination of cutting-edge performance, compact construction and brilliant resolving power that's great for sports and wildlife photography. The lens features one fluorite and one super UD element to help provide impressive contrast and resolution with reduced chromatic aberration across the entire zoom range. Canon's new Air Sphere Coating (ASC) helps significantly reduce backlit flaring and ghosting, while fluorine coatings on the front and rear lens surfaces help lessen smears and fingerprints. A 9-blade circular aperture renders beautiful, soft backgrounds, and a 3 mode (standard, panning and exposure only) Optical Image Stabilizer provides up to 4 steps* of image correction. The new inner focusing AF system helps ensure fast and accurate focus down to 3.2 ft. with a .31x maximum magnification. Usability enhancements include a rotation-type zoom ring with adjustable zoom torque for more precise, customizable zoom performance, a redesigned tripod mount that can be attached and detached without removing the lens from the camera, and an all-new lens hood with a side window that makes it simple to adjust specialty filters–like polarizers–without the need to remove the hood. Ruggedly constructed with advanced dust and water sealing for durability in a range of environments, the EF 100–400mm f/4.5–5.6L IS II USM lens is a stellar performer with refined controls for a wide variety of situations.
*According to CIPA standards (400mm focal length, when using the EOS-1D X).
The lens is extremely sharp, atleast as sharp as my 70-200 F4 IS at 200 mm (which is this lens best focal length for sharpness) at 400 mm! Its even sharper at 200 and 300 mm, although 100 mm is its weakest focal length. Even at 100 mm, its very good, wide open, so you can imagine what it does at 200 and 300 mm.