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Canon cCR3 files edits and conversion to DNG in Lightroom

New Here ,
Aug 27, 2020

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I edited some cCR3 files in Lightroom. I have to send them to someone so converted them to DNG. Before sending, I looked at those DNG files in Lightroom. The edit settings were present, but it doesn’t look like they were edited correctly. The photos look pretty bad. Can you tell me happened? If I’m ultimately going to convert the files to DNG, should I convert to DNG before even doing any editing? Do you know if this problem is an artifact of cCR3, and would CR3 be better? I also noticed that the advantage of the small cCR3 file size evaporated when converting to DNG.

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Canon cCR3 files edits and conversion to DNG in Lightroom

New Here ,
Aug 27, 2020

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I edited some cCR3 files in Lightroom. I have to send them to someone so converted them to DNG. Before sending, I looked at those DNG files in Lightroom. The edit settings were present, but it doesn’t look like they were edited correctly. The photos look pretty bad. Can you tell me happened? If I’m ultimately going to convert the files to DNG, should I convert to DNG before even doing any editing? Do you know if this problem is an artifact of cCR3, and would CR3 be better? I also noticed that the advantage of the small cCR3 file size evaporated when converting to DNG.

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Aug 27, 2020 0
Adobe Community Professional ,
Aug 27, 2020

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What was different about the DNG files? Were you looking at them in Lightroom? How were you comparing them to the original CR3 files?

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Aug 27, 2020 0
New Here ,
Aug 27, 2020

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I edited the cCR3 files in LR, then I exported them to the desktop as DNG files. Before sending them out to someone else, I reopened the DNG files in LR to see if everything was ok. To my surprise, it wasn't. Those DNG files on LR don't look the same as the original cCR3 files I did the edits on. I compared both file types side by side on LR and it was an obvious difference. 

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Aug 27, 2020 0
Adobe Community Professional ,
Aug 27, 2020

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When you say you ”reopen them” you mean you import them back? Could you have applied a preset on import?

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Aug 27, 2020 0
LEGEND ,
Aug 27, 2020

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How did you create the DNG file?

 

Did you Conert to DNG via Library module menu item

Or did yoy Export to DNG

 

Just another Adobe customer; My Sys; APP: LRC 10.0, PS 22.0; CMP: WIN WS 16GB OS 10 v1909 (18363), mid 2015 MBPr 15” 16GB MACOS 10.15.7; 4K EXT DSPY; CAM: Canon 5D Mk III, Fuji X-T3

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Aug 27, 2020 0
New Here ,
Aug 27, 2020

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I exported the cCR3 files from the library module, and did the conversion during the export.

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Aug 27, 2020 0
Adobe Community Professional ,
Aug 27, 2020

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Why did you convert them to DNG? 

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Aug 27, 2020 0
New Here ,
Aug 27, 2020

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In order to give the files to someone else who asked for that format

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Aug 27, 2020 0
Adobe Community Professional ,
Aug 27, 2020

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Run the same test but export a TIFF. Same results?

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Aug 27, 2020 0
New Here ,
Aug 27, 2020

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TIFF and JPG look as they should, just like the edited cCR3. The problem is with DNG only. 

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Aug 27, 2020 0
Adobe Community Professional ,
Aug 27, 2020

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So an edited CR3 exports to TIFF and JPEG but not DNG? All the same edits.

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Aug 27, 2020 0
New Here ,
Aug 27, 2020

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Yes, all the same edits. The DNG with the same edits as the cCR3 looks much darker, almost as though no edits were applied. In LR Devlop module, the DNG file definitely shows that it contains the edits.

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Aug 27, 2020 0
Adobe Community Professional ,
Aug 27, 2020

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What application are you viewing the exported DNG in?

Regards, Denis: System iMac mid-2015, 5K 27” monitor, macOS 11.0: LrC 10, Lr 4, Ps 22.0.1,; Camera OM-D E-M1.

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Aug 27, 2020 0
New Here ,
Aug 27, 2020

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Lightroom or Preview. Either way, the DNG files converted from edited cCR3 look bad.

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Aug 27, 2020 0
New Here ,
Sep 05, 2020

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UPDATE. Ok, I discovered the problem. It isn't cCR3 vs. CR3, it was the use of Dual Pixel! It makes sense that DNG conversion might not work perfectly on images shot with it turned on. cCR3 looked as good as CR3 without it, at least on non challenging images shot in good light. I couldn't see a difference. However, the size of the cCR3 images swelled to the same size as CR3, so if you are going to use DNG for storage, there isn't a size advantage.

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Sep 05, 2020 0