Canon 300mm f4.0L IS USM is an Auto Focus (AF) Telephoto Prime lens with 35mm FF max sensor coverage and it is designed to be used with Canon EF mount lenses.
Canon 300mm f4.0L IS USM is compatible with cameras that have Canon EF lens mount.
Max sensor coverage of Canon 300mm f4.0L IS USM is 35mm FF.
Canon 300mm f4.0L IS USM has a fixed focal lenght of 300mm. When mounted on a 35mm FF format camera, it provides an 35mm (FF) equivalent of 300mm.
Optical Image Stabilization
Canon 300mm f4.0L IS USM features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.
Grey and Black
Canon 300mm f4.0L IS USM has a max aperture of F4.0 and a minimum aperture of F32.0.