The superb Canon EF 50mm f/1.4 USM Autofocus Lens yields sharp crisp images with little flare -- even at the maximum aperture! And of course its f/1.4 speed makes it perfect for available-light shooting including low-light conditions. Compact and affordable it combines the extra-small Micro USM with full-time manual focusing when the lens is in the AF mode. Two high-refraction lens elements and gaussian optics eliminate astigmatism and suppress astigmatic difference. The lens large aperture brings the subject closer creates excellent background blur gives a longer flash range and affords a faster shutter speed to freeze the action. This great lens with its natural angle of view and perspective captures the subject plainly with no special effects. However you can use this lens in creative ways by varying the subject distance aperture and angle.