kidtexas Offline Upload & Sell: Off
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Just so you know, you can take jpgs and tiffs into ACR and treat them like a raw. DNG from a scanned file offers little over a tiff file with the exception that you could (maybe) use other raw converters in addition to ACR. I've found that as of CS3, ACR saves adjustments in the metadata of jpgs and tiffs too, so you it really is treated like a raw file with non-destructive edits.
DNGs from scanned file differ fundamentally from DNGs/RAW files from cameras because they are already full RGB files. RAWs from a camera need to be demosaiced first, which is kind of the first function of a RAW converter. Since scanners produce real RGB off the chip (they don't use Bayer sensors), that step is skipped. So a DNG from a scanner is very similar to a tiff from a scanner - the data is pretty much the same, its just laid out in the file a bit differently. And since DNG is already based on the tiff format...
To put it another way, a DNG from a scanner is like a linear DNG from a DSLR. I think that's the phrase adobe uses.
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