Samsung NX1 is a 28.2 MP Wireless SMART Mirrorless Digital Camera with 16-50mm f/2.0-2.8 "S" Lens. It was announced by Samsung on September 15, 2014. It uses TIZEN OS as its main Operating System. It has 4k video recording. It has a weather-resistant magnesium alloy body, 3" tilting Super AMOLED touchscreen display, 2.36M dot OLED EVF with 5ms lag, LCD info display on top of camera, built-in 802.11ac Wi-Fi and Bluetooth, USB 3.0 interface, Hybrid AF system with 205 phase-detect points covering 90% of the frame, 15 fps burst shooting with continuous autofocus, it can output 4:2:2 8-bit 4K video over HDMI, context-sensitive adaptive noise reduction, stripe pattern AF illuminator with 15m range and optional battery grip. It was the first commercially available camera featuring back-illuminated APS-C sized sensor.