The photographer must know how to minimize the inherent optical distortion of a very wide Angle lens.

摄影师必须知道如何使很宽的广角镜头固有的光学畸变最小化。

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Each measurement line must be placed along an image line that should be straight, but because of lens distortion is actually curved.

每个测量线必须被放置在沿着一个图像里的直线，这条线应该是直线，但由于透镜畸变实际上是弯曲的。

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Lens centre: This specifies the centre of lens distortion, measured in pixels.

透镜中心：这指定的是透镜畸变中心，单位为像素。

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However, these feelings never lasted long, because the shot would switch to another camera position which had worse contrast, or greater lens distortion, or shallower depth of field, and the illusion would be broken.

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Offering exceptional optical performance to provide minimal distortion and chromatic aberrations while suppressing ghosting and flare, the advanced lens unit allows for higher shutter speed and captures stunningly clear images.

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