Nikon 800mm PF

[fcotterill]

I posted some links here on strategic implications of the Z Mount, and Nikon engineers keep emphasized this in interviews etc and their mainstream marketing. This video by Nikon engineer illustrates the fundamental features, including why it's impossible to adapt Z mount lenses to any of the current camera systems without an intrinsic penalties, as @Steve explains above. The sketch below shows a comparison from this thread.

Another Look at Z 2022 | Thom Hogan

A second look at what Nikon might offer in the Z System in 2022

www.zsystemuser.com

Older comparison of Mount designs

Is Sony's E-Mount "Too Small"? Let's Put This Debate Out Of Its Misery

Hopefully, once you know all the facts, you can move on to more important things in your creative journey.

www.slrlounge.com

Adding to what @Steve said. Nikon has the shortest flange distance on the Z mount so in theory, you could use an adapter to use other manufacture lenses on the Z but not the other way around.

 

[EricBowles]

I posted some links here on strategic implications of the Z Mount, and Nikon engineers keep emphasized this in interviews etc and their mainstream marketing. This video by Nikon engineer illustrates the fundamental features, including why it's impossible to adapt Z mount lenses to any of the current camera systems without an intrinsic penalties, as @Steve explains above. The sketch below shows a comparison from this thread.

Another Look at Z 2022 | Thom Hogan

A second look at what Nikon might offer in the Z System in 2022

www.zsystemuser.com

The illustration also shows how thin an adapter needs to be to use Sony of Canon EF-M lenses on Z-mount. There is just not much space to work with.

The good news longer term is it means third party lens makers can build high quality optics with similar construction and different mounts. The Sony mount is narrower, so it will impact options for designs to maximize optical performance at frame edges especially for wide lenses. That won't prevent high quality lenses, but it does provide some limitation on design options.