Product Information
The EF400mm f/4 DO IS USM is the world's first super telephoto lens incorporating the exclusive Canon-developed multi-layer diffractive optical element for camera lenses. The optical element, which incorporates light diffraction, is a major technological development, and it features an exceeding ability to correct chromatic and spherical aberrations and render high-quality images. By including this optical element in the lens design, the lens has achieved tremendous savings of 26% in overall length and 36% in weight compared to comparable lenses incorporating only conventional refractive optical elements. Moreover, the size and weight advantage comes at no cost to image quality, with the EF400mm f/4 DO IS USM delivering performance equivalent to conventional models in its class.Product Identifiers
EAN0013803004991
eBay Product ID (ePID)101742546
Product Key Features
MountCanon EF
Focal LengthFixed/Prime, 400mm
Focus TypeAuto, Fixed/Prime
Additional Product Features
Maximum ApertureF/4.0
Model NumberDo Is Usm
Focal Length (mm)400mm
TypeImage Stabilisation
Camera TypeSlr
Product LineCanon Ef