The first smartphone to boast a pair of rear-facing cameras for non-3D photography was the HTC M8 in 2014 It was Apple’s iPhone 7 Plus, however, that made the double-cam setup standard on flagship phones. Now, Huawei’s new P20 Pro phone packs a trio of rear-facing cameras, and things will likely only escalate from here. And while it may sound like a novelty, multiple imaging devices feed lots of photo and video data to increasingly powerful processors. This creates computational cameras with some real advantages over their cyclopean competition.
Here’s what each camera does. Continue reading Huawei’s P20 Pro smartphone has three rear-facing cameras—here’s what each one does