Features: Bright F1.8 aperture - bokeh effect can be achieved easily, bringing you more fun during photography. 7pcs aperture blades - helping you take photos of defocused circular spots or 14 star effect. Support auto and manual focus - meet different practical requirements. With built-in focus distance indicator. 0.35m closest focusing distance - so you can get closer to the object for photography and get a larger image. Durable Metal Bracket - It is portable, corrosion resistant and highly compatible with the camera body. New Mechanical Structure and Coating Technology - Effectively improves its focusing accuracy, autofocus speed and light transmission and restrains backlight ghosting and glare. Firmware update without USB - update from camera end. This not only meets the requirements of firmware upgrade and appearance design, but also avoids incompatibility issues caused by different computer operating systems. (Note: This function must be supported by the camera.) Specifications: Brand: YONGNUO Model: yn50mm F1.8 II Focal Length: 50mm Angle of View: 46(Diagonal), 27(Vertical), 40 (Horizontal) Lens construction: 5 groups 6 elements Diaphragm blade: 7 pieces Minimum aperture: f/22 Min. Focus Distance: Approx. 0.35m Max. Magnification: approx. 0.21 times Drive system: DC motor: Filter diameter: 58mm Max. Diameter and length: approx. 75*51mm Item weight: 190g / 6.7oz (with lids) Package size: 10.5*10.5*9.8cm / 4.1*4.1*3.8in Package weight: 290g / 10.2oz Package list: 1 * YN50mm F1.8 II Lens 1 * User Manual (English/Chinese)