调焦环是照相机镜头上用于调整焦距的装置通过旋转调焦环可以调整镜头焦距使想要拍摄的物体在照相机上清晰成像
... focusing optical fiber 聚焦光纤; 聚焦光纤 focusing ring 聚焦环; 聚焦环; 调焦环; 调焦圈 focusing scale 焦距标度 ...
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第二版调焦环上的棱比前一版更宽更深。
The second version also has wider and deeper knurling on the focusing ring than the previous version.
由于本实用新型采用了上述结构，调焦环可快速地卡装在光模镜头上，拆装方便、定位准确。
With the structure, the focusing ring can be quickly clamped on the optical mode lens; and assembly and disassembly are convenient and positioning is accurate.
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