Original And Derivative Files

When you export photos from Lightroom, the original is the photo from which the new files are being made. An original can be any photo or virtual copy in your catalog. For this reason, you might have more than one "original" version of a photo in your catalog, all made from a single file on the hard disk. In this case, each variation could be considered an original in terms of exporting. For example, if you use virtual copies (vcs) to produce three versions of a photo with different crops, each vc would be considered an original.

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