In theory, the data is converted to a standard, the unknown elements are supposed to be added as maker's notes. You have to look at the specific DNG conversion software to determine how good a job it will do.
The second most common reason to not convert is because it adds another step to the process flow and uses computing power; which may affect you depending on your workflow. Since I import at the end of the day/trip and rarely start editing the same day I have not had an issue letting the computer chug away converting images while I go eat, sleep, check email.... Since I take pictures for personal/hobby I am not time constrained and the extra step does not bother me. The third most popular reason I have seen is that at some point a brilliant idea in image processing will occur, and it depends on the original raw files. The most common reasons to convert are to deal with longevity of the data; since we are already seeing problems recovering/viewing data in other industries in many other fields. However, I am not concerned about this one yet. Since I generally lag on updating my software except for security patches, when support for an older format is dropped I expect will have time to convert any file I have not done so. I would also expect Adobe, Microsoft, Apple, dt etc... to provide a warning message that the next time we upgrade it will no longer be able to read X. Lastly, worst case, I just load a VM with an older version of the software, do the conversion and re-import the data. The primary reason I have converted from CR2 and JPEG to DNG was for the inherit hash embedded in the file which can help prevent/notify you of bit rot. Since I have previously experience with bit rot I consider this worth it. Which reminds me, I need to put in a new ticket issue to suggest a validation function to dt which will store a hash for both the XMP and the original image, and can run in a background process. Tim On Sun, Aug 12, 2018 at 12:39 AM, Mike Strock <[email protected]> wrote: > What do I lose converting from CR2 RAW files to DNG? I always shoot raw > but is there a benefit or a degradation to converting to DNG for future > proofing my images? > > If this is off topic I apologize. > > Mike. > > Sent from ProtonMail Mobile > ____________________________________________________________________________ > darktable user mailing list to unsubscribe send a mail to > [email protected] ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
