Canon EF 400mm F2.8L IS III 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 cameras.
Lenses in Canon EF Mount with Same Focal and Aperture Range
Lens Mount
Canon EF 400mm F2.8L IS III 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 EF 400mm F2.8L IS III USM is
35mm FF.
Focal Range
Canon EF 400mm F2.8L IS III USM has a fixed focal lenght of 400mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides an 35mm (FF) equivalent of 640mm.
Optical Image Stabilization
Canon EF 400mm F2.8L IS III USM features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.
Maximum Magnification Ratio
Canon EF 400mm F2.8L IS III USM has a Max Magnification Ratio of
0.17x and has a minimum focusing distance of
2.5m.
Aperture
Canon EF 400mm F2.8L IS III USM has a max aperture of F2.8 and a minimum aperture of F32.
Optical Formula
Canon EF 400mm F2.8L IS III USM's optical formula consists of 17 elements in 13 groups. Following special elements are used in this design:
- Super UD
- fluorite elements
- Air Sphere
- Super Spectra
- fluorine coatings