Screenshot by Lance Whitney/ZDNETYour iPhone Pro and iPad Pro may have a helpful and powerful feature you might not know about. Built directly into the last few generations of devices, the Light Detection and Ranging (LiDAR) scanner emits a laser to measure the distances of surrounding objects. This feature provides a few key benefits.Also: The iOS 18 public beta is available for iPhone right now. How to download itFirst, LiDAR helps the camera take sharper photos, particularly in dark conditions. Second, the scanner taps into AR, or augmented reality, to combine the real and virtual worlds, acting as an AR virtual tape measure, showing you how new furniture would look in your home, scanning and recreating 3D models, or immersing you in AR games.Introduced a few years ago, the LiDAR scanner is available on the Pro and Pro Max models of the iPhone 12, 13, 14, and 15, as well as the 11-inch and 12.9-inch iPad Pro models from 2020 and later. Nestled among the rear cameras, the scanner can detect objects up to 5 meters, or 16.5 feet.1. Take a photo in the darkSnapping a sharp photo with your iPhone can be challenging in low-light situations. Thankfully, the LiDAR scanner can detect the distance of your subject, allowing your camera to power up the autofocus quickly. Also: This Pixel 9 Pro XL vs. iPhone 15 Pro camera shootout has a clear winner – and one big surpriseApple claims that the LiDAR sensor helps the camera autofocus as much as six times faster, an advantage when you want to take a shot before it’s too late. There’s no need to do anything special. Aim your phone’s camera and the LiDAR automatically kicks in if necessary. More