The new Canon EF 100-400mm f/4.5-5.6L IS II USM features a number of upgrades to improve both image quality and usability, including a built-in tripod collar and zoom lock.Canon EF 100-400mm f/4.5-5.6L IS II USM Specification: New optical arrangement and lens coatings for enhanced image qualityThe new Canon EF 100-400 f/4.5-5.6L II USM is designed primarily for use on Canon full frame DSLRs, such as the EOS 6D or 5D Mark III, where it offers a versatile telephoto zoom range ideal for sports or wildlife photography. This latest lens is also compatible with Canon APS-C cameras, such