hhost05 wrote:
I have many files that will be exported and imported several times in lightroom and other programs. However. each time, they will be saved as Tiff files (uncompressed, Adobe 1998 RGB).
Will doing this reduce their quality? I have heard differing accounts of whether tiff is a true lossless format
Well, it depends on what you mean by lossless. For example, if you crop then export as tiff, you'll lose the border. Likewise, if you move the black-point way in, then export as tiff, you'll lose the blacks, permanently. Ditto for the whites..
Bottom line: tiffs are not lossily compressed, so there is no loss due to compression (as there is with jpeg), but exporting and re-importing can result in loss, which is why Lightroom uses a non-destructive workflow where original stays original, and you are always exporting the original, with edits applied to it, instead of exporting an export, with edits applied to it..
Makes sense?
Rob