1、Constant F5.6 Large Aperture : Adopt constant F5.6 large aperture, easier to control exposure and depth of field during shooting, can focus on other things like lighting and composition. 2、Powerful Tool: 10mm ultra wide angle lens has a 172° view angle, which is very suitable for large scenes of scenery, buildings and star sky shooting for magnificent image. 3、Multi Layer Coating: MC multi layer coating is adopted to reduce ultraviolet and stray light entering the lens, effectively eliminate shadows and glare, improve light transmittance and picture quality. 4、5 Groups of 6 Pieces Structure: Using the structure of 5 groups of 6 pieces, not only the contrast of the photo is improved, but also the chromogenic distortion is well controlled. 5、Aluminum and Glass: Made of high quality aluminum alloy and optical glass with high durability, compact size make it able to be put into pocket, easy to carry and no take up much space, suitable for GH5 GM10 GX8 GF9 G7 G85 Camera. Item Type: Ultra Wide Lens Material: Alloy + Optical Glass Color: Black Application Models: For G1, G2, G3, G5, G6, The G7, G85, GF1, GF2, GF3, GF5, GF6, GF7, GF8, GF9, GX1, GX7, GX8, This, GM5, GM10, GH1, GH2, GH3, GH4, GH5, And Other M4/3 Mount Cameras Weight: Approx.162g/5.7oz Focal Length: 10mm Aperture: F5.6 Mount: M4/3 Structure: 5 Groups Of 6 Pieces Frame: Half Frame/APS-C Minimum Focus: 0.2m/7.9in Maximum Focus: ∞ View Angle: 172° Coating: MC Multi Layer Coating Lens Type: Manual Lens Anti - Shake: Without Anti Shake 1 x Camera Lens 1 x Front Lens Cover(Installed) 1 x Rear Lens Cover(Installed) 1 x Storage Bag