I never turn the camera on until I've composed a shot through the viewfinder, and I think a great deal about the photographic elements.

在通过取景器生成一个场景之前，我从来不会把摄影机打开，我考虑的很多的是摄影元素。

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The viewfinder image is crucial for accurate focusing of the lens, and therefore greatly influences image sharpness. Different photographic applications often require different focusing screens.

取景器图像对镜头精确对焦是非常重要的，它将影响图像的清晰度。拍摄不同用途的照片常常需要不同的对焦屏。

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