Just Posted: Sony Alpha NEX-5R hands-on preview. We've been investigating Sony's latest mid-range NEX to try to get to the bottom of the features it adds to the NEX family. These include a revised 16MP APS-C CMOS sensor with phase-detection elements to power the camera's hybrid AF system, and the ability to download proprietary apps. The body may look the same as the previous 5-series cameras, but don't let that fool you - there are a lot of changes under that magnesium alloy skin. Read our preview to find out more.