The Canon EF 70-200mm f/2.8 L is usm This telephoto lens produced by the Canon is compatible with all Fullframe and APS-C SLR SLR of the EF series; It has a focal length variable from 70mm to 200mm and a corner of the field between 34.4 and 12.4 degrees. The accessory uses 18 optical groups, which can count on 23 excellent quality lenses; The reproduction ratio is 0.17x. The Canon EF 70-200mm f/2.8 l is usm incorporates the stabilizer of the images and has a ring zoom; Focus takes place with an ultrasound scooter (Ring-USM). The component is equipped with tripod and is compatible with multipliers; The package includes the appropriate fetches. The dimensions are 86 mm in diameter for 197mm in length, the weight is 1570 grams; The filters measure 77mm in diameter. The Canon EF 70-200mm f/2.8 l is usm is a professional telephoto lens capable of amaze for its exceptional qualities; It is built with extreme precision and with a first level components that perfectly justify the price, slightly less than 2 thousand euros. The photos are the result of the investments made by Canon to obtain maximum resolution from all points of view; The sharpness combined with the absolute absence of Flare in conditions of backlight arouses unique emotions. The contrast is perfect; The colors are warm, full -bodied and show off shades with an artistic flavor; Each photograph manages to enhance the details that count practically perfect in any light condition, dragging the entire image with them and giving observers a series of sensations absolutely to try. Ideal for: the Canon EF 70-200mm f/2.8 L is usm is definitely a professional product and is part of a category where criticism cannot be done, but it is necessary to understand how the lens interprets reality.