4K Resolution Lens 1.21mm Fisheye Lens 220 Degree IR 1/2.3 Inch 16MP M12 Mount for 360 VR Gopro Hero 3/4 Xiaomi Yi Free Shipping Specification: Name: LYX1.21 Image size: 1/2.3inch4.3mm Focal length: 1.21mm±5% Aperture: 2.5mm±5% Field of View: D: 220 H:220V:220 Distortion: =95% @440nm-620nm, Tave=50%@650nm±10nm Barrel Material: Aluminium Alloy
