Features: 1.F1.1 large aperture, large amount of light, increases the shutter speed, do not worry about low light and night scenes, and will be easier to achieve foreground and background blur. 2.Adopted quality multi-coated optical glass, 8 elements in 6 groups, ensures low image distortion, good image clarity and contrast. 3.With focal length scale and smooth focus ring, easy to use. 4.Manual focus, make you to focus more on the image itself. 5.For APS-C camera, the 50mm focal length is equivalent to 85mm focal length, perfect for portrait photography with fascinating background blur effect. Specifications: Material: Alloy + Optical Glass Color: black Size: Approx. 10*7.5*7.5cm/3.9*3*3in Focal length: 50mm Aperture: F1.1-F16 View of angle: 32°@APS-C Filter diameter: 62mm Minimum focus distance: 0.4M Focus mode: manual focus Lens construction: 8 elements in 6 groups Number of aperture blades: 11 Packing List: 1*Lens 1*Lens cloth.