• Thoroughly pursue image quality: Adopts a symmetrical design that utilizes the strength of a mirror-free rangefinder system. High performance ultra wide angle lens with image quality first. Extremely low distortion and maintains high performance from infinity to close distance • Ultra lightweight and compact design: Total length 1.0 inches (25.4 mm), maximum diameter 2.2 inches (55 mm). The filter size is only 1.5 inches (39 mm). Lightweight at 4.6 oz (136 g), with excellent mobility • Focused on its bokeh flavor: The symmetrical design makes the front and back bokeh extremely straight and smooth. We added 10 aperture blades to help you capture beautiful bokeh photos • Minimum shooting distance is 0.5 m: By attaching it to a mirrorless digital camera via our mounting adapter, you can focus up to 0.5 m (0.7 m) above the minimum distance of the distance meter. Distance Meter Interlocking System: Allows you to enjoy high performance on a variety of platforms beyond the camera frame • Manual Focus for Sure Focusing: Precision machined and adjusted all-metal helicoid unit and high quality grease that produces moderate torque for smooth control focusing. Allows subtle focusing adjustment