500万像素的摄像头，使用了扩展景深技术，不支持自动对焦。

A 5 megapixel camera that USES Extended Depth of Field instead of true autofocus.

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波前编码成像由于可以大大扩展非相干成像系统的景深而不降低像质，成为近年来的研究热点。

For its excellent performance on extending the depth of field of the incoherent imaging system, wave-front coding (WFC) has been the research hotspot for many years.

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