A lens suited to portrait and indoor sports photography A fixed, fast aperture for low light shooting Produce sharp, high-contrast images with Super UD (ultra-low dispersion) elements to suppress chromatic aberrations Reduce ghosting and flare with Super Spectra coating The in-built Ultra-Sonic Motor (USM) drives fast and quiet Auto Focus with optional full manual override Compatible with all Canon DSLR cameras and EOS-M mirrorless cameras with an EF-EOS M Mount adapter A versatile telephoto lens, the long focal length of the EF 135mm f/2L USM coupled with the f/2 maximum aperture provides greater control over depth of field, ideal for portraiture and sports photography. This lens isolates the subject with beautiful bokeh thanks to its 8-bladed fast aperture also allowing for hand-held shooting in in low-light. Lens system Minimum aperture number 2 Closest focusing distance 0.9 m Maximum aperture number 32 Number of diaphragm blades 8 Focal length range 135 mm Lens structure (elements/