Olympus is one of the developers of the Micro Four Thirds system. It also has plans to sell off its camera business later this year. Before it goes, it's releasing one more MFT shooter. The OM-D E-M10 Mark IV mixes a compact, throwback body with some more modern features. Its sensor has been bumped from 16.1 to 20.3 megapixels and is paired with up to 4.5 stops of in-body image stabilization and a larger grip. On the backside, there's a new flip-down touchscreen, as well as a micro-USB port that supports charging. Other features include 4K video recording, an OLED electronic viewfinder, and improved face detection.