Does Lightroom let you turn on and off vignette correction with Z lenses

I've read somewhere that stuff is baked in? Can we change this stuff in particular to fully correct or fully leave in all the natural vignette of the z lenses. This is also important when shooting astro to me, when doing mosaics.

No

(If off in camera, correction are not applied in LR)

If they aren't applied automatically in LR can you not just then turn them on and vice versa? Is this true for all corrections as I've heard mixed things.

So they can be completely turned off in camera though?

I don't use LR, but in Nikons software, you can turn them off, so they're not baked in.

Yes, that was/is the case with my Z7. Any in-camera setting, distortion correction, vignette control if selected is baked-in in LRC/LR and cannot be turned off. However with my Z9 this is not the case and I can now toggle lens corrections on/off in LR. In other words I can now see the natural output of my Z lenses in LR/LRC with my Z9 specifically. Hopefully the Z8 will be treated the same way by Adobe, but that remains to be seen.

Here’s an example from my Z9 w/ and w/o (or w/o and w/ I don’t know) lens corrections in LR:

Z 20mm Z 20mm @f/1.8

Yes - and no.
Nikon software is designed to access most Nikon Canon menus items.
I am sure Canon software is similar with Canon menu items.

Lightroom and other general PP software works a lot faster by not including the ability to "translate" all camera settings in a very wide range of cameras.

Perhaps back to basics - when you intend t Post Process there seems nothing to gain by using incamera settings - and there is a lot to be said for choosing a picture profile best used for significant post processing.

If you shoot jpg editing a second time during PP looses some image information before you export a file.
If you shoot RAW Lightroom edits are not baked in at the PP stage.

yes, distortion and vignetting can be turn off in camera, but LR will anyway turn on distortion and also chromatic aberration automatic (with Z7, Z6, Z50 as I have)

RMcl says Z9 are different

Z lenses has enormous amount of vignetting and distortion compare to older Nikkor

24-70 4.0S without corrections are barely usable

Thanks. So I guess for the z7 does it work in reverse ie if you had it off in camera you could subsequently turn it on in LR if you decided later?

you have to manual adjust the vignette correction with sliders in "Lens Correction", adjust as you like:-)

I see. But if you select on in menu it does it itself?

YES -- just turn off the Remove CA and Enable Profile Corrections

See attached screenshot

Just to clarify my earlier comments. I have in-body vignette control set to high and auto distortion control ON all the time for both my Z7 and Z9. For RAW images imported into LRC from my Z7 subsequently toggling "Enable Profile Corrections" on/off under "Lens Corrections" makes no difference at all. The image is always displayed with "built-in" lens corrections applied and cannot be turned off. Sure, I can go to "Manual" under "Lens Corrections" and play around with that, but that is only a post-processing option same as "Transform" in LRC and has nothing to do with the actual output from the Z lens. Fact that the built-in distortion control is always applied in LRC even if turned-off in-body and cannot be turned-off has been a big talking point for many reviewers who were obliged to use alternative software to assess the uncorrected output from Z lenses. On the other hand, Adobe are treating RAW images from my Z9 differently. Now, I can indeed toggle "Enable Profile Corrections" on/off under "Lens Corrections" and see the uncorrected output from my Z lenses if I so choose as shown in the two images I attached to my earlier post above. This time if I enable Lens Corrections the make, model and profile of the Z lens in use are displayed in LRC under Lens Profile, whereas with my Z7 LRC only reports "built-in" in the Make row under Lens Profile. Furthermore, if I try to manually select a lens profile for my Z7 in the drop-down list and choose Nikon as make it will default to an "equivalent" focal length AF-S lens and not a Z lens thus applying an incorrect profile. Basically, Adobe have never addressed this issue with the Z6/7 cameras and I don't know if they ever did with the Z6/7-IIs? As I said, hopefully Adobe will treat the Z8 the same way as the Z9 in their software allowing complete flexibility.

You nailed this explanation, thank you.You can see why I was confused as you say the z6/7 did not allow this.