How to reset a RAW file in LR

Question

I'm probably missing something obvious as usual, but I cant't figure out how to reset NEF files in LR that have been processed in Camera Raw.

When RAW files are edited in CR, the changes reappear when opened again in the same program. It is easy enough to undo this in CR to see the original, but I can't figure how to do the same in LR - the edit history is blank. Do I need to erase the changes manually in CR or is there an easier way to do it in LR? When opened in Finder, the images appear unedited...

TheDigitalDog · Answer

All your proprietary raws are read only so neither Lightroom Classic or ACR are adjusting anything there. The question becomes:

1. Do you want to reset/remove all instructions that produce a preview in both?

2. Do you realize an embedded JPEG from the cameras in a proprietary raw have no direct relationship to the raw previews, default or otherwise in Lightroom Classic and ACR?

As Johan states, importing an image into Lightroom Classic will apply (can apply) a set of instructions for those previews that may not be seen in ACR if you reset there. But the important consideration is this; nothing has changed your raw data. You can start from scratch or anywhere you wish, all you are creating are instructions which don't directly affect the raw. They affect the previews. And if you render the raws with the instructions, then of course, the TIFF or JPEG etc, you render, gets that set of edits for this new image document.

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