Canon 70-300mm f4-5.6 IS USM is an Auto Focus (AF)
Telephoto Zoom lens with 35mm FF max sensor coverage and it is designed to be used with Canon EF mount cameras.
Lens Mount
Canon 70-300mm f4-5.6 IS USM is compatible with cameras that have Canon EF lens mount.Some of the latest released cameras with Canon EF lens mount are
Canon 1D X III,
Canon 6D MII and
Canon 5D MIV.
Sensor Coverage
Max sensor coverage of Canon 70-300mm f4-5.6 IS USM is 35mm FF.
Focal Range
Canon 70-300mm f4-5.6 IS USM has a focal range of 70-300mm and 4.3X zoom ratio.
Optical Image Stabilization
Canon 70-300mm f4-5.6 IS USM features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.
Zoom Method
Rotary (extending)
Zoom Lock
Canon 70-300mm f4-5.6 IS USM has a Zoom lock feature which eliminates Zoom creep where focal length of the lens changes with gravity when it's held downwards or upwards.
Aperture
Canon 70-300mm f4-5.6 IS USM has a max aperture of f4 at 70mm and max aperture of f5.6 at 300mm .