"Real" 3d movies are shot with a dual-lens cameras, which capture two versions of every shot.

“真正的”3d电影是用双镜头摄像机拍摄的，每一帧都会有两个不同版本。

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Dual main cameras with a built-in 3d depth engine that allows for a faster shot-to-shot experience in creating complex depth-of-field images.

双主照相机具有内置的3d深度引擎，其允许在创建景深的复杂的图像更快拍摄到拍摄经验。

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The Nokia Lumia 620 uses a new dual-shot color technique to deliver a variety of striking color and texture effects.

ENGADGET: Nokia Lumia 620 announced: 3.8-inch WVGA display, 5MP camera, $249

Dual-shot adds a second layer of colored, transparent or translucent polycarbonate on top of a base layer to produce secondary color blends and depth effects.

ENGADGET: Nokia Lumia 620 announced: 3.8-inch WVGA display, 5MP camera, $249

The covers apparently get their eye-catching look from their "dual-shot color" shells, with several of the cases a mix of either two colors or a white base and gently tinted outer layer.

ENGADGET: Nokia Lumia 620 hands-on: $249 for Windows Phone 8 (video)