The contrast detection thresholds of the Chinese were measured for monocular and binocular viewing, and the satisfactory results are obtained.

测定了中国人单眼和双眼的对比察觉阈值，取得了满意的实验结果。

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Physical studies of the eyes and retinas of fish show that the majority can obtain a clearly focused image, detect motion, and have good contrast-detection ability.

物理研究鱼的眼睛和视网膜显示大多数鱼能获得清晰对焦的图像，侦测动作，并具有良好的反差度检测能力。

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Contrast Detection in the X-E1 brings your subject into sharp focus in as little as 0.1 seconds.

ENGADGET: Fujifilm grows X-series mirrorless lineup with 16.3-megapixel X-E1

The F900EXR automatically switches between Phase Detection AF and Contrast Detection AF depending on the subject and scene, guaranteeing superb ease-of-use and fast, accurate autofocus no matter what the setting or shooting conditions.

ENGADGET: Fujifilm launches alphabet soup of point-and-shoot, compact and bridge cameras

Unfortunately, the autofocus is only contrast-detection, but Samsung is steadfast to claim that it's one of the fastest to the draw against the competition.

ENGADGET