Lens Not Attached:MANUAL LENS need you to enable"M mode" or "Release without lens" in the setting of camera.Minimum focusing distance: 0.15m Lens construction: 11 elements 9 groups, aperture range of f2.8 - f16 Wide-angle and large aperture: APS-C Visual angle: diagonal 190° horizontal 161.8° vertical 106.5° Sharp images and color contrast : Give you a special experience on astrophotography and Street Photography Meike Wide Angle Fisheye Lens For Fuji X Mount cameras.Metal body, lightweight and portable. Weight 260g