Canon EF 400mm f/4 DO IS USM
Téléobjectif

This lens is an EF 400 f/4.0 DO IS USM lens.

Caractéristiques

• The world's first multi-layer DO element for telephoto lens
• Small and light
• High image quality
• Image Stabilization for equivalent effect of a shutter speed of two stops faster
• Highly resistant against dust and moisture

The EF 400mm f/4 DO IS USM is the worlds first super telephoto lens incorporating "Multi-Layer Diffractive Optical (DO) Element", for camera lenses, and is considered a major breakthrough. The outstanding feature, being its superb ability to correct chromatic aberrations. By incorporating this optical element in the optical design the EF 400mm f/4 IS USM is much smaller and lighter than a comparable lens having conventional optical elements. The Multi-Layer Diffractive Optical Element developed by Canon is a milestone optical element possessing the characteristics of both fluorite and aspherical elements, which has led to the production of high-performance camera lenses.