For photographers who want to be closer to their subjects, the minimum focusing distance of the lens has been reduced to 3.2 ft. (0.98m), resulting in magnification of 0.31x. The original EF 100-400mm had a good push-pull zoom adjustment, but the EF 100-400mm f/4.5-5.6L II USM uses a rotation-type zoom ring similar to the one found on the EF 70-300mm f/4-5.6L IS USM lens, which gives you more precise adjustments, easier handling, and better weight balance for handheld shooting. The new zoom also has an inner focusing system, a powerful yet quiet Ring USM, a high-speed CPU and optimized auto focus (AF) algorithms for better autofocusing for various situations.
Like other L-series lenses, the EF 100-400mm f/4.5-5.6L II USM is better resistant to dust and water, well suited for wildlife and sports photographers. Fluorine coating on the front and rear surfaces of the lens can repel dust particles and water droplets. Also included is a new ET-83D lens hood, that features a cleverly placed and convenient side window allowing the user to easily adjust specialty filters while the lens hood remains in place. The lens also contains a newly designed detachable tripod mount which can be removed to reduce weight during handheld operation.
The Canon EF 100-400mm f/4.5-5.6L II USM Super-Telephoto Zoom Lens will be available this December with an MSRP of $2,199.00. For more information, please visit http://usa.canon.com/cusa/consumer/products/cameras/ef_lens_lineup/ef_100_400mm_f_4_5_5_6l_is_ii_usm