Pinhole lens , Button lens, screw lens optional.
针孔镜头，纽扣镜头，螺丝镜头可选。
Clicking on this button will recompute the vignetting factors for each field based upon the current lens data.
点击这个按键将根据当前镜头数据重新计算每个视场的渐晕因子。
Reset: Clicking this button will reset the lens distortion model to its default state.
复位：点击该按钮将重置镜头畸变模型到默认状态。
This prevents the problem of unexpected extension of the lens since the lock function is in effect if the power button is pushed.
电源按钮锁定功能可防止镜头因为按下电源按钮而意外伸出。
A push button extends into the end ring and has a lens cap.
一个按钮伸进该端环，并具有一个透镜盖。
The push button is modular so it can be modified with different lens shapes, colours and materials.
该按钮是模块化的，所以可以用不同的镜头形状，颜色和材料的修改。
The push button is modular so it can be modified with different lens shapes, colours and materials.
该按钮是模块化的，所以可以用不同的镜头形状，颜色和材料的修改。
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