Thanks to an evolutionary leap in image processing power and efficiency, the Alpha 7R IV combines high-resolution 61MP back-illuminated Exmor R CMOS image sensor with impressive shooting speeds at up to 10 fps with full AF/AE tracking, as well as beautiful 4K HDR video, wide 15-stop dynamic range and high sensitivity with area specific noise reduction. | Sony | | Alpha 7R IV Full-frame Mirrorless Interchangeable Lens 61 MP Camera | Body Only | Black | Best Buy