- 4 UD Elements Correct Chrom. Abberations
- Ultra Sonic Motor (USM) Inner Focusing
- Constant f/2.8 Maximum Aperture
- Focuses to 4.9′ (1.5m)
- Filter Size – 77mm
- Compatible W/Extender EF 1.4x II & 2x II
- 18 Elements in 15 Groups
- Rotating Type Zoom System
Canon‘s EF 70-200mm f/2.8L USM is one of the finest telephoto zoom lenses in the EF line, comparable to a single focal length lens. It has four UD-glass elements to correct chromatic aberrations. Its constant f/2.8 maximum aperture and superb image quality make it one of the most popular professional SLR lenses in the world. Compatible with Extender EF 1.4x II and 2x II.
The 70-200mm L lens family shows many genetic similarities aside from their obvious focal length range similarity. Top notch image quality with build quality to match is at the top of the list. All have constant wide apertures (f/2.8 or f/4) over their entire zoom range. All feature fast, quiet and accurate autofocusing benefiting from Ring USM (Ultrasonic Motor) and internal-focusing. All four are internal zooming lenses – the physical length of the lens does not change throughout the zoom range. All four share 8-blade apertures (though the IS lenses features a round aperture) for excellent out-of-focus blur quality.
If you need a lens in the 70-200mm focal length range that is faster than f/4, but can’t afford or don’t need IS, the Canon EF 70-200mm f/2.8 L USM Lens is perfect for you. This is an excellent lens.
Very similar to its IS enabled cousin the Canon EF 70-200mm f/2.8 USM L is an impressive piece of lens with superb build quality combined with an excellent optical performance which is, in fact, slightly better than in the rest of the family and comparable to the best fix-focals in its range. So if you can live without IS (which is, however, darn attractive in its 70-200mm f/2.8 L IS incarnation) there’re still good reasons to go for this superb lens!