p The EF 70 300mm f 4 5.6 IS USM telephoto zoom lens has been developed to meet the high performance standards that today's photographers demand. Improved Image Stabilizer Technology provides up to three stops of shake correction, and the Mode 2 option stabilizes images while panning with a moving subject. Compared to the original Canon EF 75 300mm IS zoom lens, this telephoto lens has faster auto focus, and overall the lens is lighter and has a smaller diameter than the original. The zoom ring can be locked at the 70mm position, making this powerful lens easy to transport, too. p p Compatibility p EOS SLR Camera Systems p p