Some Canon EF lenses incorporate an image stabiliser to prevent camera shake from spoiling the shot. This is particularly useful on close-ups or at slow shutter speeds, in situations where a tripod camera cannot be used. Optical shake is detected by gyro sensors which provide data to neutralise the shake. Some EF lenses have two IS modes, including one for panned shots to help you enjoy still greater photographic freedom.

This image stabilisation lens has a newly developed system that can achieve stabilizer effects equivalent to approximately 3 stops in terms of shutter speed. It further has high-resolution, high-contrast optical capability, and dust - and moisture-resistance, making this one of the most advanced and robust models in its class.

Features
L-type telephoto zoom lens with image stabilizer
Four UD lenses provide compensation for chromatic aberration
Highly dust and moisture resistant Inner focusing design plus ring USM for silent, high-speed AF