兼容60 mm同轴系统的连续可调光阑
黑色阳极氧化的铝制外壳
带拨杆调节
兼容30 mm同轴系统的连续可调光阑
兼容16 mm同轴系统
光阑孔径连续可调
超薄结构设计
通光孔径连续可调
黑色钢制弹簧叶片
带SM1内螺纹和外螺纹，便于集成到SM1透镜套筒或30 mm同轴安装板中
一般用于控制光束直径
带拨杆/不带拨杆可选
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