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Author Topic: JPG-->DNG?  (Read 1996 times)
JoeThePhotographer
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« on: November 11, 2009, 10:20:32 AM »

Sometimes friends or family members give me CDs of pictures they've taken with their digital cameras.  Invariably, they've shot them in Jpg rather than Raw.

Should I convert the jpgs to DNG when I import them into Lightroom?

Joe
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peterkrogh
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« Reply #1 on: November 15, 2009, 12:45:46 PM »

Joe,
Probably not, I'd say.  I'm hopeful that the DNG spec will be amended so that JPEG originals can be stored as JPEG data, rather than  as TIFF data.  This would make the files much smaller.

About the onl reason I would suggest doing this is beuase you want to make parametric edits and send them off to other programs or users, and you want the recipient to have access to both the original and the adjusted image.

The downside to doing this with JPEGs is shown in this movie:
http://www.dpbestflow.org/image-editing/parametric-image-editing#not
Peter

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tho3hite
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« Reply #2 on: April 03, 2010, 09:56:39 AM »

It's been 5-months since the last reply on this thread. With new Creative Suite coming soon and Lightroom in Beta 2 are there any new developments with regard to embedding JPEG data in DNG files?

Thomas
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peterkrogh
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« Reply #3 on: April 12, 2010, 10:57:57 AM »

Thomas,
Unfortunately, no.  The DNG team (really the Camera Raw team) has been busy with other stuff.
Peter
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