The EF 70-200mm f/4L IS USM is a lightweight, compact L Series
telephoto zoom lens with Image Stabilizer. The optical Image
Stabilization in the new EF 70-200mm f/4L IS USM lens provides
up to an incredible four stops of shake correction-a first for
Canon IS lenses. The use of fluorite UD lens elements provides
excellent optical performance in terms of resolution and contrast.
These features, together with its water-and dust-proof construction,
provide both the performance and portability to meet user demands.