Shooting with a wide Angle lens gives the image a sense of depth, but keeping the vertical lines straight allows it to be appear very Stoic.

广角镜头拍摄给图像一种层次感，同时保持垂直线条的笔直，使它呈现地很挺拔。

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The divergent lens only enlarges the Angle of horizontal divergence and not the Angle of vertical divergence.

发散透镜只增加水平发散角而不增加垂直发散角。

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The application of GRIN rod lens is usually used with its core as optical axis, this is transverse application, and any analyze for vertical application is not seen.

目前渐变折射率透镜的应用，通常都采用其主轴就是光线传播的光轴（横向应用）的形式，未见主轴垂直光轴应用的纵向应用分析说明。

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The holder start in a locked vertical position, and to attach a lens you just bayonet it into place, securing the glass and allowing the holder to be lowered.

ENGADGET: Insert Coin: Quikdraw targets lens fumblers and multiple camera packers (video)