Problems embedding camera profiles in LightRoom 6 CC DNGs.

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Hi, Since December last yr I have been converting on import into LR my 5Dmkii files to dng. I do this as I believe the Dual Illuminant camera profile I have created using my Colorchecker passport can be embedded into the file. I found out the Update DNG Previews and Metadata is required to actually embed the profile. So, up until now my import would occur, the dng previews would be created and then I would select all images so that I could then "Update DNG Previews and Metadata". A bit long winded but it did what I thought was necessary.
I am now looking at a computer upgrade. Currently win7 64. I have lots of camera profiles from various shoots. I have lost profiles as well and discovered this when I view the image and see the camera calibration defaulting back to Adobe Standard or some such. Wanting to avoid this, I started the dng conversions.
Up until today I thought all was fine, however I have performed some tests and either I don't understand what is occurring or there is a bug... Could someone advise me please. I have searched online at adobe but haven't found an answer.
1) I shot a new image today and imported as dng into LR6. I have custom settings including the dual illuminant camera profile set as default settings. I Updated the Dng preview and metadata on it to embed the profile. I then took that dng over to my sons laptop with my 2nd (installed today, no custom settings and no custom camera profiles) copy of LR6. I checked the camera profiles and it gave me an old profile from a yr and a half ago from ACR.
2) I then took a LR5 processed dng from january this yr and ran update DNG previews and metadata on the dng file. I took that over to the laptop, checked the camera calibration tab and find the correct dual illuminant.
Now, it seems that my understanding was correct for LR5 but is this a bug with it not embedding correctly or has something changed I haven't picked up on?
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John Murray

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Posted 3 years ago

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Steve Sprengel, Champion

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First, the issue that has nothing to do with your version of LR, on Windows, your custom camera profiles are stored in or in subfolders of the following location, so you should be able to move or copy them from their on your old computer to the new computer:

C:\Users\-username-\AppData\Roaming\Adobe\CameraRaw\CameraProfiles\
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You seem to be reporting two things, that Copy as DNG during Import is not embedding any custom defaults in the DNG initially so you have to use Update DNG Previews and Metadata, but then you say that even this isn't working in LR 6.

It's also not clear if you actually have a new computer that you're doing everything on, now, or if you're still using the older computer. You talk about not having all your custom profiles on a new computer but then you say you are saving a DNG with a custom dual-illuminant profile which could be that you're still using the older computer which has the profile or it could be that you've recreated the profile on the new computer.

Is the LR that wasn't initially creating DNGs with your custom settings on Import LR 5.7.1 or an earlier version? I ask because there was a problem maybe with LR or maybe with ACR where the defaults were getting reset to Adobe defaults, but I'm pretty sure that was fixed by last December if you were running the most up-to-date version of LR.

As far as LR 6 not embedding things, I haven't heard of that being reported, but I never use DNGs because I don't want my raws to be incompatible with non-Adobe software so wouldn't have run across it, myself, so it could be happening but LR 6 hasn't been out long enough for someone to try things on a new computer like you're doing.

There seem to be three computers, two of yours and one of your son's, and more than one version of LR, but it's not completely clear what combination of computers and LR versions are being discussed, except that your son's computer has LR 6.

Even with LR 6/CC 2015, there have been three versions released: x.0, x.0.1, x.1 and you haven't said precisely which versions of those you're using, either, just in case something you're reporting has changed with one of the updates.
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John Murray

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Steve,
Machine #1 is my original Win764 machine with LR6 on that I first noticed the problem on.
Machine #2 is a Win 7 64 2 yr old laptop which only has 2 profiles that suit my camera. Both of which are named differently and incorrect for the files.
The new machine I talked about hasn't been delivered yet. I am trying to simplify the migration process before it turns up. I have copied and reworded slightly from my original post for hopefully better clarity.
1) I shot a new image today and imported as dng into LR6.1 on Machine #1. I have custom settings including the dual illuminant camera profile set as default settings. I Updated the Dng preview and metadata on it to embed the profile. I then took that dng over to my sons laptop (Machine #2) with my 2nd (installed today, no custom settings and no custom camera profiles) copy of LR6. I checked the camera profiles and it gave me an old profile from a yr and a half ago from ACR.
2) I then took a LR5 processed dng from january this yr (from Machine #1) which had run update DNG previews and metadata on the dng file using LR5 from when the file was created. I took that over to the laptop, checked the camera calibration tab in LR6.1 and find the correct dual illuminant. It has obviously embedded correctly as opposed to the LR6.1 embedded version.
Both machines are running LR6.1
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John Murray

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As a further note, I am using DNGs now for the abilty to embed the camera profile in it as well as being able to validate the dng. Prior to that I have had profiles go missing or corrupt. I'll not need to worry about copying the profiles folder to the new machine. One less thing to go wrong. Until this issue raised its head of course... :)
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John Murray

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This problem can be replicated by the following steps. Please note that I have a default custom camera profile appled on import.
Test #1
1) I copied the raw CR2 file to my #1 machine.
2) I imported into LR6.1 with my deault import settings of the 5DMk2 Dual Illuminant Profile being set as well as minor presence settings. As part of the import it performs the Convert to Dng.
3) I copied the file to #2 Machine and checked the Profile. The profile was incorrect.
4) Then, on #1Machine I ran the Update Dng Previews And Metadata command.
5) I transferred the dng to #2 machine. The profile was incorrect.

Test #2
1) I copied the raw CR2 file to my #1 machine.
2) I imported into LR6.1 with my deault import settings of the 5DMk2 Dual Illuminant Profile being set as well as minor presence settings. As part of the import it performs the Convert to Dng.
3) I copied the file to #2 Machine and checked the Profile. The profile was incorrect.
4) Then, on #1Machine I Held down the Shift Key and double clicked the whites and blacks sliders to set the black and white clipping points. I ran the Update Dng Previews And Metadata command.
5) I transferred the dng to #2 machine. The profile was correct!. It read 5DMk2 Dual Illuminant Profile as it should have.

This seems then that if no exposure adjustments are made to the file before running the Update Dng Previews and Metadata command, that the profile is not correctly embedded in the dng. If exposure adjustments are made, then the profile is embedded correctly.
It would seem then that people should be able to replicate this result by trying it for themselves. Would you agree?