AvTvM said:
And yes, yes, yes - a new short-flange distance native mount for FF image circle unlike Canon with APS-C only EF-M mount and Sony with small E-mount causing major issues in FF lens design.
Nikon will be able to smoothly transition to only 1 totally UNCOMPROMISED mount for both FF and APS-C mirrorless cameras/systems ... rather than needing 2 different mounts. They are very late, but maybe they are smarter ...
The EF-M mount is perfectly capable of supporting full-frame lenses should Canon want. It would make far more sense to use EF-M than create yet another format. That way full-frame EF-M lenses could still be used on APS-C cameras and, unlike EF-S, vice versa.
Also, I am not sure where you got the idea that this is going to be a wider mount. If you look at the patent designs for the two lenses you'll see that the rear elements are shown no larger than sensor itself, meaning there is no need at all for a mount wider than the EF-M or FE mount.
And let's please again deal with the fallacy that short flange distance mirrorless mount somehow compromises lens design. Which you keep repeating yet remains completely untrue. Don't forget that the Nikon F mount is almost identical in diameter.
The only issue is distance between rear element and the sensor, and the mount only restricts the minimum distance this can be, not the maximum.
So far from restricting design it is completely the opposite giving lens designers more flexibility.
There's only a compromise if you're creating ultra-compact lenses for the mirrorless mount. And these Nikon lenses certainly aren't that.
The most interesting thing about the new Nikon announcements is that the F mount adaptor has a dedicated focus system with a pellicle mirror. Much as Sony initially did with their A mount to E adaptor.
This presumably means they haven't got on-sensor phase detection autofocus anywhere close to either Sony or Canon's DPAF.