The difference between dng files and tiff files is dng becomes the negative, and can replace the raw file, whereas the tiff file is generated from the raw file and does not replace it. So the settings in the tiff file should be at 0 since you did not edit the tiff file. I hope that makes sense.
The lzw compression is like zip it compresses the size of the file, if you have the drive space setting compression to none will make it load faster and is compatible with more apps.
Personally I leave my setting to their default, I haven't had a need to change them.
Thanks. I always keep my Raw files In a separate folder, and for printing purpose, I use the Tiff Format. CMYK. I don't usually save or convert my Raw files to .dng, If I need to to do any-thing with my original shot, I just go back to my Raw file and do more work there. Is there any specific reason to convert Raw files to .dng ?
What is the Benefit ?
I also stick with the raw files. However dng files are open meaning another company could keep it up to date should anything happen to Adobe. The file size is smaller but it does allow you to embed the raw file in it, which would make it larger. But the dng does not need a sidecar file, the metadata is saved in the header of the dng.
Maybe this will help -
Thank you very much.
If you start with raw and save as TIF then the TIF file has new pixels resulting from the settings being applied to the raw file. The settings were for the original pixels in the raw file, not the new pixels in the TIF file.
Selecting LZW does compress the image, but some programs do not understand LZW compression so will not be able to open the TIF files if they are compressed. You probably need to understand what programs will be used, and test to make sure they can work with TIFs that have LZW compression.