Top positive review
5.0 out of 5 starsgreat focuser upgrade from D810
Reviewed in the United States on December 11, 2017
I've had this camera for a couple of months now and am really pleased with my decision to upgrade from the Nikon D810.
Image quality is really not that different from my D810 but this camera does nail the white balance far more frequently than the D810 did. This saves me a lot of time in post processing.
Where this camera really blows away the D810 is with the focus engine. Whether it's up to D5 levels or not, it is light years ahead of the D810. I set the D850 to AF-C with dynamic-area (25) focus and simply spray-shot as my two dogs ran around the yard near dusk. The results were shockingly good as the D850 continued to nail shot after shot. With my D810, a play session with the dogs might yield 5-10 usable shots out of several hundred taken. With the D850, I had well over 100 perfectly-focused shots of the frenetic dogs; this was without the benefit of direct sunlight. I shot those with my 85mm F1.4G at F1.4, ISO 1250, and 1/2000 shutter speed. Noise was really low (though visible when you zoom in to 100% view). Fortunately, the noise is fairly easy to clean up in post processing.
The touchscreen is nice and I use it more than I thought I would. Scrolling/zooming an image is not as fast as a smartphone, but it's very good and not painfully laggy. The tilt screen (which tilts both upwards and downwards) is a great addition that lets you set the camera on the floor to capture a crawling baby without having to lay on your stomach.
45MP is a lot of data. I shoot RAW and I learned this weekend that I can fill a 32GB card in a matter of minutes when doing action photography. For that reason, I moved to a 128GB card. I went with the Sony G UHS-II SD card and performance is magnificent. I considered a 128GB XQD, but I already had a good SD reader and at the time I needed them, XQD cards and readers were in short supply. Due to the extremely good performance of the Sony G UHS-II SD cards, I'm content to stick with SD even though I know XQD can be faster. Either way, 32GB (~300 shots) is not enough storage for this camera if you shoot RAW so plan on a large card.
As a former owner of a D700 and then the D810, I can tell you that as an owner of either of those, you'll be thrilled with this camera. If you're still using the magnificent D700, be prepared for image handling to be drastically slower unless you've recently upgraded your computer. If you've already jumped to 36MP, then going to 45MP is not really a noticeable difference.