Sensor: APS-C CMOS Sensor with 24.2 MP (high resolution for large prints and image cropping) ISO: 100-51200 sensitivity range (critical for obtaining grain-free pictures, especially in low light) Image Processor: BIONZ X with 425 autofocus points (important for speed and accuracy of autofocus and burst photography) Video Resolution: 4K video with fully manual control and selectable frame rates (excellent for precision and high-quality video work) Connectivity: WiFi (useful for remotely controlling your camera and transferring pictures wirelessly as you shoot)