First we must find the focus of a lens.

首先我们需要找到透镜的焦点。

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It has a lens system to focus light onto the film at the back of the camera.

它的镜片系统可以将光线聚焦到相机后部的胶片上。

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To achieve an in-focus and magnified image, the researchers actuate the hydraulics to change the curvatures of the lens and detector in a coordinated manner.

为了获取一个内焦距放大的图像，研究人员开动液压装置，改变透镜曲率，以协调方式改变检测器。

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It'd be hugely valuable to have the entire bottom of the screen act as a trigger, so you can focus on what's downrange of the lens instead of how to direct your fingernail to land on the speck-of-a-button that'll trigger the shutter.

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The HD lens has a focal range of 29mm-667mm (35mm equivalent) and includes manual focus, servo zoom, and iris rings, along with three ND filters and a removable hood.

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