Brand:Rokinon Lens Series:None Color:Black Lens Type:Fisheye Lens Mount:Canon EOS M Format Compatibility:Canon (APS-C) Focus Type:Manual Focus Closest Focus Distance:11.81' / 30 cm Focal Length:8mm Angle Of View:180 35mm Equivalent Focal Length:12.8mm Maximum Aperture:f/2.8 Minimum Aperture:f/22 Maximum Magnification:#N/A Filter Size:NA Lens Elements / Groups:11 Elements / 8 Groups Diaphragm Blades:#N/A Dimensions Diameter x Length:2.36 x 2.54' (60 x 64.4 mm) Weight:9.17 oz / 260 g Image Stabilization:None