Body: Metal body Ultra-wide angle, low distortion design lens Focus length (mm): 6 Image size (mm): 6.4 x 4.8 (Φ8) Focus range (mm): 100~∞ External dimensions (mm): Φ34 x 45.8 C mount: Screw-in mount with flange back 17.526mm Lens: 1/2英寸固定焦点 f值:1.2〜关闭