Mechanical design with excellent vibration and impact resistance Mechanical design with improved water and dust resistance Special coating improves water repellency and cleaning of the lens surface Replaceable iris plate Uses double nut method for focus adjustment Adhesively fixes all glass Focus length (mm): 25 Image size (mm): 8.8 x 6.6 (φ11) 焦点范围(mm):200 〜∞ 外部尺寸(mm):φ33x 39.7 c坐骑:带有法兰的螺丝架17.526mm镜头:2/3固定焦点