Canon EF 400mm f/4 DO IS USM
Canon’s breakthrough multi-layer diffractive optical lens technology provides photographers with superior super-telephoto performance in a smaller and lighter design with enhanced correction for chromatic aberrations. We’ve also added our highly effective Image Stabilization system that gives the equivalent effect of a shutter speed two stops faster. And, it’s built to our professional standards with fast AF, full-time mechanical focus and dust and water-resistant construction.
Main Unit Spec
|Focal Length & Maximum Aperture
||17 elements in 13 groups
|Diagonal Angle of View
||Inner focusing system with USM
|Closest Focusing Distance
||3.5m / 11.5 ft.
|Max. Diameter x Length, Weight
||5.0" x 9.2", 4.3 lbs. / 128.0 x 232.7mm, 1940g