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Additional Information
| In the box: | N/A |
|---|---|
| Manufacturer | Canon |
| Model | 400MM F4 DO IS USM |
| MPN | 7034A009AA |
Details
Features
* 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
Built to Canon professional standards with fast AF, full-time mechanical focus and dust and water-resistant construction
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.
