调焦环
- 网络Focusing Ring;Focus Ring
调焦环-
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 .
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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 .