转动镜头 meaning in English

roll camera

To remove the lens , press the lens release button , then turn the lens in the direction shown by the arrow . for best results , use ricoh lenses only
要卸下镜头,请按下镜头释放按钮,然后按箭头方向转动镜头。为得到最好的拍摄效果,请只使用理光镜头。
The method is as follows : when the video signals from cmos image sensor pass through a high - pass analog filter , the microprocessor samples and processes them and then judge whether the lens is in focus . if the lens is not well focused , the microprocessor will control the lens to be in focus by moving the stepping motor
这一系统采用的方法是通过对cmos图像传感器输出的模拟视频信号进行滤波，提取出代表图像清晰程度的高频成分，选用单片机组成硬件电路，对信号进行处理并分析判别聚焦位置、控制马达转动镜头至对焦清楚。