The Nikon D850 is a full-frame or FX format DSLR with 45.7 million pixels on its backlit CMOS sensor. It sits below the Nikon D5 in the company’s DSLR line-up and above the D810 (which is set to continue).

DSLR cameras, the big bulky Nikon and Canon cameras you see photographers and your cousin Mimi rocking at weddings, aren't going to go away any time soon, but mirrorless cameras, like the excellent Sony A9 , have gotten good enough to make the Nikons and Canons of the world scared.

The Nikon D850 updates the Nikon D810 from 2014 and is a significant upgrade, with an all-new 45.7mp full-frame BSI CMOS sensor, fast continuous shooting at 7fps (up to 9fps with battery grip), 4K UHD video recording, a tilting 3.2inch touch-screen, and built-in Wi-Fi and Bluetooth.

Excellent image quality possible; Excellent noise performance; Variety of Auto White Balance options; Improved focus performance; Impressive battery life; 4K video recording; High-speed FullHD video; Large; clear touch-screen

Remote control app is extremely limited; Slow live-view focus speeds

It's been three years since Nikon released the D810, its image-quality flagship full-frame camera. Its successor, the D850, looks like it's been updated enough to get it through the next three, with a new 45.7-megapixel BSI CMOS sensor (which typically deliver faster readout), Nikon's most recent autofocus and metering systems, 4K video and more.

The successor to the Nikon D810 hits 45 megapixels and 7-9 fps continuous shooting.

The Nikon D850 is Nikon's latest high resolution full-frame DSLR, boasting a 46MP backside-illuminated CMOS sensor. But, in a fairly radical departure for the series, it is also one of the company's fastest-shooting DSLRs.

With a resolution of 45.7 megapixels and an Australian RRP of $5,200 (body only), the D850 is aimed squarely at Nikon-using professional photographers looking for medium format level resolution. Doubtless there will also be a few well-heeled landscape shooters taking a closer look too...

The Nikon D850 DSLR has just hit the market to an initial round of applause that - on initial tests - is more than deserved. The long-awaited replacement for 2014's D810 - a good camera in its own right - has a stream of improvements and pluses with very few negatives.

Fast - 7 to 9 frames per second; Tilting; touch LCD; 153-point AF system; Superb image performance

No built-in flash; No GPS; Uses the so-so SnapBridge system rather than offering built in connectivity