Where is change in Camera Raw to TIF images saved and how can it be undone?

Being new Camera Raw I find there are advantages to use RTAs to make certain types of changes even to non-premieres images like hair that I have a lot of.  One of ACR adjustments I find particularly useful vs using the PS is to adjust the dark and light tones.

I feel that ACR TIF file changes, for example, are "non-destructive" - that is, which means that I could always go back to the original at any time.  With changes to a raw image, I could do than to simply delete or even rename the sidecar XMP image. But it seems that the pods are not created for changes to a TIF image and so far I don't see how I could go back to the original TIF image / non-revised prior to the amendments of the cab.

Just try to understand the possibility to use ACR for non-premieres images.  Grateful if someone could give advice or not ACR change my TIF images are in fact non-destructive, and if so, how could revert to the original image before changes in ACR?

Thanks for your advice.

Jerry Keenehan

The changes are non-destructive, even to what is believed, stored as xmp data embedded in the tif (Similarly for jpg) file.  ACR does not have any warning that it is to overwrite the original file.  The pixel data are unchanged.  Of course, only programs Adobe will display the changes.

Changes can be "erased" by right clicking on the thumbnail in Bridge, invoke develop settings and select clear settings.  The tif file remains forever altered in what a story is embedded in the file, but for all practical purposes, the changes are deleted.

Richard Southworth

Tags: Adobe Camera Raw

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