Sony announces flagship Alpha 1 mirrorless camera with 50MP sensor and 8K video Sony has announced its flagship Alpha series mirrorless camera, the Alpha 1. The A1 combines the best of Sony's other mirrorless cameras — the A7R, the A7S, and the A9 — and takes it all to the next level to create the best hybrid photo and video camera that the company currently has to offer. The A1 has a new 50.1MP full-frame stacked Exmor RS CMOS sensor with an upgraded BIONZ XR image processor. The new sensor offers 15+ stops of dynamic range for videos and stills through its ISO 100-32,000 range (expandable to 50-102,400 for stills). You can also create 199MP images using the upgraded Pixel Shift Multi Shooting mode and Sony's Imagine Edge desktop software.