Canon 400mm f4.0 DO IS USM is an Auto Focus (AF)
Super Telephoto Prime lens with 35mm FF max sensor coverage and it is designed to be used with Canon EF mount cameras.Canon 400mm f4.0 DO IS USM was replaced with Canon EF 400mm F4 DO IS II USM. Follow the link to read our comparison of these lenses:
Compare Canon EF 400mm f4.0 DO IS USM vs Canon EF 400mm F4 DO IS II USM
Lenses in Canon EF Mount with Same Focal and Aperture Range
Lens Mount
Canon 400mm f4.0 DO IS USM is compatible with cameras that have Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Focal Range
Canon 400mm f4.0 DO IS 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.
Weather Sealings
Canon 400mm f4.0 DO IS USM is a weather sealed lens which provides an extra protection to prevent water and dust get inside the lens and camera body under light rain, snow and wind. In order to have an effective protection, you have to pair the Canon 400mm f4.0 DO IS USM with a weather sealed camera body such as Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Optical Image Stabilization
Canon 400mm f4.0 DO IS 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 400mm f4.0 DO IS USM has a Max Magnification Ratio of 0.12x and has a minimum focusing distance of 3.5m. 0.12x means that the max magnification ratio is very low and not suitable even for modest close-up shots.
Aperture
Canon 400mm f4.0 DO IS USM has a max aperture of F4.0 and a minimum aperture of F32.0.
Optical Formula
Canon 400mm f4.0 DO IS USM's optical formula consists of 17 elements in 13 groups . Special elements used in this design is Multi-Layer Diffractive Optical (DO) Element.
Lens Hood
Canon 400mm f4.0 DO IS USM doesn't come with a lens hood but there is an optional lens hood with a part code of ET-120 that you can order separately.
Body Colour
Canon 400mm f4.0 DO IS USM is available in Grey and Black color.
Popular Comparisons of Canon 400mm f4.0 DO IS USM
Here is the eight most popular comparisons of Canon 400mm f4.0 DO IS USM amongst Camera Decision readers.