[mst]

I don't get that, Studor 13: silent shutter was already available on D810, but I guess you mean first curtain electronic shutter in LV?

That's still two different things: the D810 had a "Quiet" mode, where shutter and mirror were slowed down or delayed, resulting in less mechanical noise.

The D850's "Silent" mode completely relies on an electronic shutter, avoiding any mechanical movement. That means, the camera does indeed stay silent, but it also means the mode only works in LV mode.

Just discovered Nikon finally put focus stacking abilities in a DSLR. As a first, alright, but a bit half hearted: the stack will not be internally combined to one RAW, and they only made a scale from 1 to 10 and leave the test rows to all users:

How much steps are needed for a certain aperture on a given lens?
How do I get starting and ending point? It seems, I only can decide the starting point and face the result lateron.

I haven't read much about the stacking mode, yet, other than that you select the distance between shots from a scale of 1 to 10 (where 1 means the focal length of the lens divided by 30) and the number of shots to take. This might take some practice, depending on how they implemented it, still it is a very welcome feature especially for product shots (and macros of static subjects).

I don't mind that the camera doesn't combine the shots, just as with panos I prefer to have control and the option to correct small flaws, so rely on additional software (for both, panos and stacking) anyway.