Canon EF 50mm F/1.4 USM Key Features Bright f1.4 Aperture- Great depth of field Fast USM AF motor Compatible with full-frame and APS-C EOS DSLRs Excellent in low light conditions A Compact and unobtrusive, high-performance prime lens This compact prime lens from Canon is incredibly popular amongst all EOS users and has a reputation for providing excellent "bang for your buck" value. The common 50mm focal length is a favorite for a day-to-day fixed focal length and will often be found on the front of many photographers' cameras, replacing larger and inferior quality zoom lenses. The large f1.4 maximum aperture cannot be challenged by a zoom lens within this budget and it finds you well poised to tackle low-light conditions, such as dawn or dusk and it opens the door for adventures into the depth of field control. Suitable for use on both full-frame and APS-C format Digital SLR cameras, the Canon EF 50mm f1.4 USM lens provides an 85mm equivalent focal length on the smaller format, with this more magnified length offering an even tighter crop. This makes head and shoulder portraits a breeze to capture. Although it is built strong and sturdy, this lens is small and light, benefiting users of entry and mid-level bodies by delivering a more portable kit, that still brings the goods photographically. EF 50mm f 1 4 USM Discover the EF 50mm f/1.4 USM, a quality portrait lens delivering big pictures from its robust, yet compact and lightweight body. Super Spectra coating for stunning colors The EF 50mm f/1.4 USM's Super Spectra coatings ensure accurate color balance, enhances contrast, and reduce flare and ghosting Smooth background blur brings your subject to life The EF 50mm f/1.4 USM boasts a circular aperture for soft out-of-focus while sharp foreground objects come to life against smoothly blurred backgrounds.