Linear zoom: Macro on, Night off, Press zoom key to change.
高级线性缩放：打开微距，关闭夜景模式，按音量键缩放。
The design methodology of miniature linear zoom objective lens of far-focus is presented.
介绍远焦小型变焦距物镜的设计原理及方法。
The design methodology of miniature linear zoom objective lens of far-focus is presented.
介绍远焦小型变焦距物镜的设计原理及方法。
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