The Canon EF 70-200mm f/2.8L IS II USM Telephoto Zoom Lens improves upon its predecessor, one of the most acclaimed lenses in the Canon EF line, with superior performance, increased speed and optical. Rubber O-ring can be combined with EOS 1V and EF "II" tele converters for near imperviousness to moisture exposure. Two-stage Image Stabilization can correct for all types of camera shake or just up/down shake (for use when panning with a moving subject). Focus limiter switch. Shorter minimum focusing distance and higher maximum magnification than its 70-200mm f/2.8 L predecessor