Sample pictures taken with the Xiaomi Redmi Pro (a.k.a. Redmi Note 4) dual camera emerge2
Today, a couple of pictures, allegedly shot with the upcoming phone's dual camera, were leaked on the Internet. The two photos show an outdoor and what seems to be an indoor shot of a dog and a cat respectively. While their resolution has obviously been reduced and we can't judge a lot about detail yet, what we do see is that the photos have a very shallow depth of field, as objects that are away from the camera's point of focus very quickly become blurred out in a nice, soft background.
These blurring effects (a.k.a. bokeh) are one of the ways a dual camera could be employed. We've seen this on the HTC One M8, where the manufacturer employed a low resolution secondary sensor, which played no part in the actual capture of an image, but was there to record focus details. Alternatively, the dual camera can be used to gather lighting and color information separately – the way the Huawei P9 does it.
So, while it does look like Xiaomi is using the two sensors to achieve bokeh effects on the Redmi Pro, we still can't be sure whether that's exactly the case. We'll have to wait a week and see.