the Canon EF 16-35mm f/2.8 L USM lens was born with a purely wide-angle characteristic. Thanks to the f/2.8 (focal aperture) it allows you to acquire very good sharpness, even in low light and thus obtain extraordinary results. USM (ultrasonic motor) is an important feature for lenses, allowing you to enjoy fantastic, fast and silent autofocus. Its minimum focusing distance is 28cm and you can easily switch between automatic and manual focus without having to inhibit AF (autofocus). the lens in question is characterized by three spherical lenses, reaching excellent sharpness at the moment of focusing. Its production, being between 2001 and 2007, does not allow for the stabilization, but it takes fantastic shots even on slightly moving subjects. The external coating allows it to be very resistant to climatic conditions: cold, rain and snow will not be a big problem for the Canon EF 16-35mm f/2.8 L USM. the lens is made up of super spectra coatings, i.e. a coating capable of eliminating so-called ghost images, very common in the world of photography, which require special programs to eliminate them. Instead, thanks to this type of coating, you won't have any problems. Not having a stabilizer, the Canon EF 16-35mm f/2.8 L USM is more suitable for panoramas or static subjects, if not in slight movement. It is a widely used lens and recommended even by the best professionals.