BuckSkin wrote in post #17834881
? ? ? ANOTHER DPP QUESTION ? ? ?
When I am working on RAW files in DPP, I have noticed when I click "SAVE", it saves my work onto the RAW file almost instantaneously; but, when I select "convert and save", it takes quite some time for it to create the TIFF file.
Can I just save the enhanced RAW files until I get them all finished and then convert them all at a later time ?
If I just click "SAVE", when I retrieve the RAW file later for conversion, will my enhanced version be the one that gets converted or do I need to "save recipe to file" or whatever ?
Thanks for reading.
Heya,
RAW isn't really an "image" file. It's just a proprietary library of data in it's own way. The data is read and rendered by DPP's engine. This is Canon's proprietary stuff though, which is why it's fast, it's optimized to their algorithms. Converting and saving to another file container requires it to be encoded. Converting to a TIF makes it an actual image container, and fills it with data, lossless data, and very generic data so that everything can read it without special algorithms to uncompress or decode phrases, so to speak. So they are huge.
When you save the settings you did to the RAW file, it's just saving the properties, not changing the data. So it's instant because it's just keeping a table basically of properties, but it's not recoding or compiling the data all over. Just that little table. When you convert/save as a different container (TIF, JPG) it completely gets recoded & compiled as something completely different, so that takes time and CPU power and drastically changes file size (up and down!).
You can save all your RAW settings you apply so that later you can convert them without re-processing or re-doing it. And of course, you can also revert back to no settings changed. That's the beauty of RAW. I keep RAW so I can go back and re-process if I want with new technique, or just a new idea, etc. I delete the TIF after I have processed and finalized a JPG. I post JPG. I even print high quality JPG. For critical prints, I print TIF. I then save the RAW's, they're small compared to TIF's, and I keep JPG's since they take up next to no space relative to today's storage capacities.
Very best,