Canon EF 500mm f/4L IS (Image Stabilizer) USM Lens

Canon's EF 500mm f/4L IS (Image Stabilizer) USM Lens provides AF with any EOS body even when used with the EF 1.4x Extender. Weather-resistant construction, excellent durability, superb AF speed and optical quality combine with Canon's Image Stabilization for incredible imaging potential. This lens weighs 8.53 lb (3.87 kg) so a tripod or monopod is a required accessory. A tripod collar is built into the body of the lens.