FDRAX43 4K Handycam with Exmor R CMOS sensor - professional-quality video always at your fingertips Sony's 4K Handycam captures your world in stunning color and detail with Balanced Optical SteadyShot and 20x optical zoom. With fast intelligent autofocus, a sophisticated built-in multi-capsule microphone and powerful built-in video processing, this camcorder is a compact creative powerhouse. Balanced Optical SteadyShot with Intelligent Active mode Shoots in 4K Ultra HD (3,840 x 2,160) ZEISS Vario-Sonnar T 26.8mm lens with 20x optical zoom.