https://www.engadget.com/2017/08/24/...ll-frame-dslr/

Nikon recently teased a full-frame D850 for its 100th anniversary, hoping it would fulfill the wish-lists of pro photographers. It has now unwrapped the DSLR and seems to have wildly succeeded with that goal. The D850 is entering medium-format territory, resolution-wise, with a 45.7 megapixel sensor, and can push those images through the camera at 7 fps, or 9 fps with the optional battery grip. And this time, Nikon didn't leave videographers out, as it can handle 4K video at 30 fps.

The D850's sensor is a pretty big jump in resolution over its predecessor, the 36.2-megpixel D810, and Nikon says it has an "unprecedented combination of resolution, dynamic range, ISO and processing power." It's the company's first DSLR to boast a back-side illuminated (BSI) CMOS sensor, and eschews an optical low-pass filter (OLPF) to preserve maximum sharpness. Nikon didn't mention who built it, but Sony uses a pretty similar sensor on its 42-megapixel, full-frame Alpha A7R II.