The Canon EF 100-400mm f/4.5-5.6 L IS Usm II is a sensational telephoto lens compatible with the Canon EF models with APS-C and FF technology; The focal length varies from 100 to 400mm and the lenses consist of 21 elements distributed on 16 optical groups. The type of zoom is external ringing, mounts built -in stabilization and has a focus with ultrasound AF engine. The weight of the component is 1570 grams and the dimensions are 94 mm in diameter by 193 mm in length. The Canon EF 100-400mm lens f/4.5-5.6 L IS Usm II allows shots from the remarkable sharpness and the stabilization with which it is equipped with is very efficient; Its construction is very robust and precise. The photographs that are obtained with this telephoto lens are rich in detail and the reproduction of movements is even better than that of traditional photos; The colors are exciting, perfect in color and realistic, never excessive in the shade and never too blurred. The Canon EF 100-400mm lens f/4.5-5.6 L is usm II gives each shot unique characteristics; Whatever the photographer's intention, the component returns an incredible result; Realism, definition, details and amazing colors come together creating an image that has the ability to be technically perfect. Finding a small defect in the use of this telephoto lens is particularly difficult; Each photographer has with this product of an accessory with which to perform any type of photo in any atmospheric condition. Ideal for: Canon's telephoto lens is aimed at all professionals, even taking into consideration the price that is anything but popular.