Best practices to develop & JPEGs keyword - use of virtual copies

There is no sidecar files attached to the Jpeg file and I understand all the changes on the JPEG slightly deterioriate the quality of the file.

Therefore, is it advisable to use copies for all changes vitual?

Use would use them for trial and error procedure, then apply the settings stored in the Jpeg file?

Or would it be better to let the original completely intact Jpeg and stick to the once modified virtual copy?

What keywords apply to several steps before and after usig the develop module.

Any advice would be much appreciated. Thanks in advance.

Make changes to a JPEG in Lightroom does not damage the file.  Lightroom makes no changes to image data in any file.  The changes are stored as metadata.  JPEG images are degraded when they are continuously stored in a program where the changes are made directly on the image data.  That would be the case with Photoshop, for example.  But if you make all your changes in Lightroom and then export a JPEG, it's one generation record.  And it would take some very sophisticated equipment to measure any drop in quality.

I use a virtual copy to create multiple renditions of the same image.  But I do not hesitate to work directly on the original files, no matter what format they were taken in.

Tags: Photoshop Lightroom

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