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P: Merge to HDR-Pano Render larger previews

Participant ,
Oct 12, 2022 Oct 12, 2022

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only contains a very small preview, which will not allow proper viewing from any app that uses the embedded preview.

The size of this preview does not reflect the setting for the size of embedded previews.

The preview size of the resulting DNG should at least contain on option to have a fullsize preview embedded and respect the overall setting for embedded previews.

 

System: Windows 10, Applications: Camera Raw in Photoshop and Lightroom Classic

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correct answers 1 Pinned Reply

Adobe Employee , Oct 13, 2022 Oct 13, 2022

The current behavior is as designed and a feature request would be the proper course for this thread. I will convert it thusly. 

 

Workaround: 
You can force ACR to recalculate the previews (and control the size) using the “Update DNG Previews” command from the […]  menu in inside the ACR dialog.

 

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Participant ,
Oct 12, 2022 Oct 12, 2022

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When generating a HDR or Panorama in Adobe Camera Raw or Lightroom, the resulting DNG only contains a very small preview, which will not allow proper viewing from any app that uses the embedded preview.

The size of this preview does not reflect the setting for the size of embedded previews.

The preview size of the resulting DNG should at least contain on option to have a fullsize preview embedded and respect the overall setting for embedded previews.

 

System: Windows 10, Applications: Camera Raw in Photoshop and Lightroom Classic

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Participant ,
Oct 12, 2022 Oct 12, 2022

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It seems like the text above is incomplete - here is the correct version:

When merging HDR/panoramas in ACR or LR Classic, the resulting DNG file only contains a very small preview, which will not allow proper viewing from any app that uses the embedded preview.

The size of this preview does not reflect the setting for the size of embedded previews.

The preview size of the resulting DNG should at least contain on option to have a fullsize preview embedded and respect the overall setting for embedded previews.

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LEGEND ,
Oct 12, 2022 Oct 12, 2022

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Does this setting have any effect on the size?

ACRprefs.jpg

Do you have Lightroom? After DNG creation, I wonder if you set up the DNG preview preferences, then use the Update DNG Preview command. It then saves the preview to the size you specified. 

Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"

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Participant ,
Oct 12, 2022 Oct 12, 2022

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Hi, thanks for your response.

I am not using Lightroom at the moment. I am aware, that there is the command in Lightroom to rebuilt the preview, but LR and ACR should respect the setting you mentioned, already when creating the DNG file in the Merge HDR/Panorama process.

My setting was set to full size, but also when changed to Medium size, nothing changed. Previews are still less the 1 Megapixel. 

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LEGEND ,
Oct 12, 2022 Oct 12, 2022

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The LR idea was just a test to see if indeed, you get a larger preview. 

Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"

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Participant ,
Oct 12, 2022 Oct 12, 2022

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ok, I just imported my test image into lightroom and recreated the DNG embedded preview manually and it worked as it should. So the image itself is not the problem. It just seems like the HDR/Panorama-module is ignoring that setting and embedding only a very small preview instead, which in my opinion is a bug.

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LEGEND ,
Oct 12, 2022 Oct 12, 2022

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Agreed, thanks for the test.

Let's move this from discussion to bug, OK? Then the Adobe team will take a look. 

Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"

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Participant ,
Oct 12, 2022 Oct 12, 2022

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absolutely! Thank you!

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Adobe Employee ,
Oct 12, 2022 Oct 12, 2022

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Let's leave this in Discussions until the Camera Raw team responds. 

Rikk Flohr - Customer Advocacy: Adobe Photography Products

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LEGEND ,
Oct 12, 2022 Oct 12, 2022

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With Rikk here, you've got the attention to move forward. 

quote

absolutely! Thank you!


By @berliner_ffm

 

Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"

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Adobe Employee ,
Oct 13, 2022 Oct 13, 2022

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The current behavior is as designed and a feature request would be the proper course for this thread. I will convert it thusly. 

 

Workaround: 
You can force ACR to recalculate the previews (and control the size) using the “Update DNG Previews” command from the […]  menu in inside the ACR dialog.

 

Rikk Flohr - Customer Advocacy: Adobe Photography Products

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