Is there a way to identify which images have no adjustments in Lightroom Classic?

[David C Anderson]

I have over 30,000 images and it would be very useful if I could identify which of them have never been given any custom Develop adjustments (likely to be quite a significant percentage). I could then apply Lightroom's Auto Setting to all of them simultaneously. I've only just realised that the Auto Setting does a pretty good job.

However, I don't know a quick way to identify those images. Any assistance would be much appreciated. 

[dj_paige]

There is a smart collection provided by Adobe named "un-Edited".

[David C Anderson]

Many thanks for that rapid and useful reply.

Having only made occasional use of Smart Collections in the past, I forgot that they might provide a solution to my problem. I didn't know where to find the "un-Edited" collection you mentioned, but I created my own Smart Collection with the rules 'Has Adjustments is false' and 'Has Edits is false'.  That identified 12,000 images.

At the time, I didn't understand the distinction between these rules, but a Google search has made that clear. Has Adjustments means it's been adjusted but not cropped. Has Edits means it's been adjusted and cropped. 

[David C Anderson]

As a follow-up question, is there a way to identify those images that are using the Auto adjustment setting?

When Auto has been applied to an image, the Auto button is greyed out in the Develop module, but I have failed to find a Smart Collection rule that finds such an image.  

[dj_paige]

I don't think there is a way in LrC to search for which photos have Auto applied.