Nikon Z5, images shot with Z 24-200. Lens correction are on in camera.First photo was taken at f/4 and per NX Studio the Vignette Control value was 15. As you can see, clearly not enough. The second photo was taken at f/11 and here the value was 60 - enough to eliminate it.It seems that the camera is adjusting the amount of vignetting control based on aperture. Is this to be expected? It's odd to me if it is because I would think that more correction would be used with wider apertures. And of course, I can set it to 60 on the f/4 shot and it does eliminate it.f/4 - Vignette Control set at 15f/11 - Vignette Control set at 60

For vignette control the camera offers off, low, medium, and high.  This was not mentioned in your post.  Comparing those settings would be the best starting point because stopping down isn't always an option.If the high is not enough, then you would submit those samples to Nikon to update firmware for the lens, body, or both.  I feel like Nikon is generally too conservative with their adjustment settings, sensitivity, timers, and more.  For example, Canon lets you set minimum and maximum apertures.

skyrunr wrote:For vignette control the camera offers off, low, medium, and high. This was not mentioned in your post.It's set to "High".  But is that relevant?  Why would the camera use or assign different settings for different apertures?  That's what I'm trying to understand.

John Retsal wrote:skyrunr wrote:For vignette control the camera offers off, low, medium, and high. This was not mentioned in your post.It's set to "High". But is that relevant? Why would the camera use or assign different settings for different apertures? That's what I'm trying to understand.I would say that stopping down and the longer exposure reduced vignetting more than the vignette control setting did. Even the 2.8S Z lenses have vignetting wide open, so you just pay attention to it. I add vignetting to the vast majority of my images anyway, but for those clear blue skies I would want them corrected as you have done.Mentioned here:https://photographylife.com/reviews/nikon-z-24-200mm-f4-6-3-vr/3PS  As much as I like the 24-200VR, 24-70F4S, the 24-120F4S is even more impressive.

skyrunr wrote:I would say that stopping down and the longer exposure reduced vignetting more than the vignette control setting did.If we take the vignette control out of the equation (If I had it set to none) then I would certainly understand that simply stopping down would remove most of the vignetting.But there's this.  I can take the f/4 image, set its value to 60 and the result looks just like the f/11 one.  Or, I can take the f/11 image and lower the value to 15 and it then shows the same amount of vignetting as the f/4 does.It still seems there's something going on internally where the camera is making changes to the value based on aperture.

skyrunr wrote:For vignette control the camera offers off, low, medium, and high.Does that do anything to the raw file, I forgot.  Thanks.This was not mentioned in your post. Comparing those settings would be the best starting point because stopping down isn't always an option.If the high is not enough, then you would submit those samples to Nikon to update firmware for the lens, body, or both. I feel like Nikon is generally too conservative with their adjustment settings, sensitivity, timers, and more. For example, Canon lets you set minimum and maximum apertures.

No the raw file is unaffected. But depending on the software it will be always be on and  connot be disabled, like e.g. in the RAW converter of PS.