The Canon EF 35mm f/1.4L USM lens is a wide-angle lens compatible with all EF series cameras produced by Canon, in FullFrame and APS-C formats. The focal length of the Canon EF 35mm f/1.4L USM measures 35mm; there are 9 optical groups and are characterized by the use of 11 lenses. Focusing occurs via an ultrasonic motor and there is no image stabilization. The diameter of the filters is 72 mm and the lens hood is supplied with the purchase; the weight is 580 grams and the dimensions are 79 mm in diameter by 86 mm in length. The Canon EF 35mm f/1.4L USM is a high quality wide-angle lens, with which very sharp exposures are obtained and which have one of their best characteristics in three-dimensionality; the lens is built very well and when handling it you can feel the precision of the mechanics. The photos taken with this lens are very detailed both in terms of contours and colors, which manifest themselves in many truly pleasant shades. These two qualities allow the frames to take on an artistic appearance, where every smallest detail has a precise role from a technical and emotional point of view. Whether the subject is a person or a glimpse of a city or any other place is represented, you have the sensation of being in front of something unique and simply perfect. Considering the price, we can undoubtedly declare that we are faced with a "must have". Ideal for: it is a professional product, but considering the price even photography lovers could give it more than a thought.