The Panasonic Lumix DMC-LX15 is a powerful compact camera. The LX15 features a large 1-inch CMOS sensor, 4K video recording, fast 24-72mm f/1.4-2.8 lens, and a a tilting 3.0-inch LCD touchscreen, all in a camera that you can fit in a trouser pocket. Read our in-depth Panasonic Lumix DMC-LX15 review with sample JPEG, RAW and video files to find out if Sony should be worried or not…