Nikon is developing a new full-frame mirrorless camera, the Nikon Z9, which will offer "the best still and video performance ever."

The Z9 was revealed in a blog post this morning, along with a single photo. And from what we already know, it will almost certainly succeed the D6 DSLR as Nikon's flagship model.

Nikon's post revealed several details about the Z9 - most importantly, that it is in development, will feature a full-size sensor, and will appear this year.

We also know that the Z9 will be able to shoot 8K video, that it will be on par with other flagship cameras like the Canon EOS R5, and that it will use a newly developed FX format stacked CMOS sensor and image processing engine.

The latter is potentially great news, as stacked CMOS sensors have faster readout speeds than BSI (backside illuminated) sensors. Theoretically, the Z9 could deliver faster burst shooting and autofocusing than potential rivals with BSI sensors, such as the Sony A7R IV. [However, it is described as "the first flagship model to use the Nikon Z mount" and "to meet the advanced needs of professionals," so it seems certain that it will replace the D6 as Nikon's top camera.

The Z9, with its built-in vertical grip, looks like a cross between the full-frame mirrorless Z7 and the professional-level DSLR D6.

While Nikon's official announcement doesn't tell us that much, some specs have been leaked through the Nikon Rumors site. There is no way to know if they are accurate, but Nikon Rumors generally has a good track record with these things.

According to the leaks, the Z9 will have either a 45-46MP, 50MP, or 60MP sensor, with the latter two most likely. It will also feature a high-resolution, blackout-free electronic viewfinder with a 120 Hz refresh rate, 20 fps burst shooting, and "stunning" autofocus tracking.

Of course, such a professional camera will come with a professional price tag, which Nikon Rumors estimates will be $6,000-$7,000 when the Z9 arrives (probably this fall). Thus, the Z9 will not make our list of best cheap cameras.