The Sony Alpha a9 Full Frame Mirrorless Interchangeable-Lens Camera (Body Only) is a technologically advanced and innovative digital camera with unmatched imaging performance. It boasts record achievements: It's the world's first full-frame stacked CMOS sensor (from the world's largest sensor manufacturer) and offers the world's most phase detection AF points at 693. The revolutionary image sensor combined with high-speed processing help make the a9 a game changer. The a9 also has a viewfinder that offers blackout-free continuous shooting at fast speeds. It offers high shutter speeds without noise or vibration, plus AF and AE tracking to follow moving subjects flawlessly without lag. These and many other features make the a9 a reliable mirrorless digital camera. Full-frame Stacked CMOS Sensor The Sony Alpha a9 provides the first-ever 35mm full-frame stacked Exmor RS CMOS sensor with integrated memory that enables data speed processing at up to 20x faster than previous full-frame mirrorless cameras. This sensor boosts image quality with the new, enhanced BIONZ X processing engine and front-end LSI, plus 24.2 megapixel resolution. Up to 20fps Continuous Shooting With the a9, get up to 20fps continuous shooting at full 24.2MP resolution, providing up to 241 RAW / 362 JPEG images, and continuous autofocus/auto exposure tracking, with up to 60 AF/AE tracking calculations per second. Blackout-free Viewfinder An unprecedented blackout free OLED Tru-Finder provides continuous shooting at fast speeds with 100% frame coverage. Bolstered by the Quad-VGA OLED Tru-Finder EVF, you get an uninterrupted view of your subject with a 60 fps live-view refresh rate. Silent, Vibration-free Anti-distortion Shutter A fully electronic, high-speed, anti-distortion shutter achieves speeds as high as 1/32,000 sec, far exceeding the limits of a mechanical system. The electronic system delivers sharp images free from disruptive mechanical noise. The shutter enables wide open shooting in bright conditions or freezing fast-moving objects in moments of clarity, something that would be prevented by a slower shutter speed. World's Most Phase Detection Points With 693 focal plane Phase Detection AF points, the a9 offers the world's most AF points, and the points cover a wide 93% of the frame. Overall, the a9 provides a fast, wide and dependable 4D Focus system with fast Hybrid AF with approximately 25% faster AF operation than the 7R II. It reliably tracks and captures even the fastest moving subjects across the frame, even at 20fps. The AF system features Eye AF, lock-on AF and AF tracking. Other Features Wi-Fi, NFC, QR code, FTP file transfer, LAN terminal, Sync terminal Dual media slots (Slot 1 UHS-II SD Card compatible) Ethernet port for file transfer Extended battery life 5-Axis in-body image stabilization with a 5.0 step shutter speed advantage Full-frame 4K video with full-pixel readout and no pixel binning Z battery with approximately 2.2x the capacity of W batteries My Menu, customizable interface and buttons, plus back focus button Robust magnesium alloy body with dust and moisture resistant design Up to ISO 204,800 with wide dynamic range, 14-bit uncompressed RAW 3-inch 1440K-dot tiltable LCD screen with touch control Multi-selector, Drive and focus mode dials / AF-ON button