aperture effect的意思|示意

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Aperture effect是摄影术语，指的是可以改变摄影机的光圈可以产生模糊或清晰的影像。它是摄影师在创作摄影作品时可以运用的一项重要技术。

To change the aperture of the camera is to change the size of the hole, or aperture, through which light reaches the film or digital sensor. Aperture is measured in F-stops, and is related to the amount of light that passes through the lens. The higher the F-stop number, the smaller the aperture, and the less light that is allowed to reach the sensor. 开放大光圈通常在拍摄阳光明媚的日景照片时比较有用。这种模式一般是用来拍摄显示景物的整体而无关细节的照片，背景通常会变得非常模糊，使得前景更加突出。

The opposite effect is achieved by closing down the aperture. When the aperture is smaller, the background is sharper, but the area of sharpness is shallower. This means the photographer can present a much larger area of an image in sharp focus. Using a smaller aperture is often recommended when shooting portraiture, as it brings both the subject and the background into focus.

总之，摄影师可以根据所需的拍摄效果来选择合适的光圈大小。选择的光圈大小直接影响着拍摄出来的图片的质量，摄影师一定要清楚，并有耐心地一步一步来调整，才能拍出精彩的照片。