Huawei P9 uses dualcam tech to refocus

Huawei P9 uses Leica dual-lens camera tech to refocus

Image caption Leica"s brand appears on the rear of the P9 handset

Huawei has unveiled an Android smartphone that uses dual-camera technology to let owners refocus photos after they have been taken.

The feature is the result of a collaboration between the Chinese tech firm and German camera-maker Leica.

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