The Canon EF 100-400mm f/4.5-5.6 L IS USM is one of the most valid camera lenses on the market, thanks to a technical sheet worthy of a truly top device in its category. The manufacturing materials, as well as the technologies integrated within the operating mechanisms, guarantee the product optimal functionality especially for those who need to take very high resolution images. The presence of the ultrasonic AF motor capable of exploiting the Ring-USM technology constitutes the peculiar characteristic of the lens which thus manages to carry out the focusing operation in strictly short periods of time. The 100-400 mm focal aperture with optical image stabilization, the angle of view that varies from 24.4 to 6.2 degrees and the reproduction ratio of 0.20 x are the three most important features that complete the technical framework of an ideal product to be used both in the professional field and by simple amateurs of the photographic art. Unlike many other lenses on the market in the same price range, the Canon EF 100-400 mm is supplied with a lens hood which makes taking photographs optimal even in poor visibility conditions. Ideal for: Canon EF 100-400 mm f/4.5-5.6 L IS USM is ideal both for professional use and if you simply want to take high definition photos as a hobby. However, its components are certified at an advanced level compared to those equipped on the vast majority of competing products.