EF 28-300mm f/3.5-5.6L IS USM
Canon's professional take on an extended-range zoom lens. Unlike most consumer-grade 28–300mm (or similar) zooms, this lens offers thoroughly professional build quality, with extensive use of metal in its mechanical design. It also uses Canon's high-end ring-type Ultrasonic Motor, for virtually silent and instant AF, and full-time manual focus by just turning the focus ring. Along with the EF 100–400mm L-series lens, it's a push-pull design for quick zooming, and the zoom has a separate ring that can be tightened or even locked, to prevent unintentional zoom changes.
- Strong, solid design to withstand the rigors of regular professional use
- A one-lens solution to professional travel or event shooters, especially when working with full-frame digital SLR bodies (it is fully compatible with all EOS cameras)
- Optical Image Stabilization in the lens provides up to three stops of correction for camera "shake"
- Potentially useful for critical business or institutional users who need to carry minimal equipment and need considerable lens flexibility