Canon EF-S 55-250mm f/4.0-5.6 IS II Telephoto Zoom Lens + Tiffen 58mm UV Prot. This high-zoom-ratio lens is equivalent to a focal length of 88-400mm in the 35mm format. f/4-5.6 aperture - 27 50'-6 15' diagonal angle of view 4-Stop optical image stabilization 3.6' minimum focusing distance For Canon EOS DSLR cameras with APS-C sized sensors and an EF-S mount.