The Canon EF 28mm f/2.8 is usm is a wide -angle lens renowned for its versatility and brightness. In fact, it is capable of making objects or subjects taken in dark conditions very bright. Thanks to this peculiarity it is able to better frame the subject by creating a blur in the background, creating a particular effect; It is able to give good quality even from the point of view of videos, a peculiarity that not all lenses have. It has a discreet focus, both USM automatic (ultrasound engine) and manual, going from one to the other quickly and silently. Manual focus is recommended compared to the automatic one, especially when you need to increase the zoom on a subject you want to frame. The bokeh effect with this Canon EF 28mm f/2.8 is usm is one of the best in circulation, especially if you compare with the other lenses of the Japanese company. It has very good construction characteristics: the Canon EF 28mm f/2.8 is usm is specially designed to defend itself from accidental falls and adverse climatic conditions, especially in what are rain and snow. It is a lens suitable for both the debutants of the world of photography and for those who are more experienced.