Both the aperture and focusingadjustment positions can be fixed by set screws to remain secure in high vibration environments.
光圈和对焦调整都可用螺丝固定以防止由于振动而使其改变。
2
The aperture, zooming and focusing control speed of the camera can be adjusted, which provides facility for the precise adjustment of the camera lens.
摄像机镜头的光圈、变焦、调焦控制速度可调，为精确调整摄像机镜头提供情报方便。
3
The report talks about the principles, structure, accuracy analyses, main technical data, characteristics, adjustment and application of a new type internal focusing device for centring.