The D850 is Nikon’s latest full-frame camera. It features a 45.7 MP full-frame BSI sensor matched with an EXPEED 5 image processor and boasts ISO sensitivity from 64-25600. (extendable to ISO 32-102,400)
It sports a slightly heavier weather/dust resistant body made of magnesium alloy, with a deep grip that helps when handling longer, heavier lenses. The D850 weighs approx. 915g compared to the 880g of the D810 (note that these are body-only weights).
Like the D5 and D500, the D850 gains a focus joystick for more accurate selection of AF points. Also, the viewfinder offers 0.75x magnification – the highest ever by a Nikon FX-format DSLR.
The rear 3.2-inch LCD has a 170-degree viewing angle and a resolution of 2.359 million dots. It does tilt with full touch control, so you can finally navigate the menus like you would on your smartphone.
Speaking of which, you can use pinch gestures to zoom in and out when you playback images, and swipe left/right to move through images.
The layout on top is typical Nikon. Compared to the D810 though, the top buttons are now laid somewhat like a triangular pattern, with the movie record button shifted slightly forward.
Unfortunately, there is no pop-up flash with the D850, so you'll have to bring a speedlight around if you need a fill flash. Alternatively, you can get the optional WR-A10/R10 transceiver to wirelessly control SB-5000 speedlights.
All the ports you would need for video recording sit on the left of the body.