Portrait mode chooses a large aperture (a small 'f' number) which will make the depth of field (the amount of your shot in focus) smaller.

人像模式用一个大光圈(f值小)，而让景深(清晰对焦的那部分)变小。

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Depth of field is a key aspect of many droplet shots, with a clear central area and a hazy smooth outer edge to the shot.

视野深度是很多微小水珠拍摄的关键，中心区域清晰，外缘平滑模糊。

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Here's an in-game shot of the Ark Airport, which shows some of the depth and creativity that went into the design of the environment.

下面是一个在游戏中开枪的方舟机场，这表明一些深度和创造力进入设计环境。

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The dispute involves a portrait taken by Italian photographer Paolo Pellegrin, who shot it on assignment with the Magnum Photo agency last year as part of an in-depth look at a high-crime Rochester area known as the Crescent.

WSJ: NY subject of prizewinning photo questions ethics

Similarly, the full-frame sensor enabled low-light captures that would have yielded a fair amount of noise if shot on the RX100, and much of the time, I did appreciate having such a shallow depth of field at my disposal.

ENGADGET: IRL: Sony's Cyber-shot DSC-RX100 and the full-frame RX1

The artists at Legend3D began by studying every shot in the film and mapping out each element on screen in order to create a realistic sense of depth.

ENGADGET: Top Gun Blu-ray 3D details revealed, comes home February 19th after IMAX 3D run