Photoshop: Merging exposures into an HDR image issues (Lion OS)

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  • Updated 6 years ago
  • (Edited)
When trying to merge three different exposures of a subject (three dng files), my single (merged) image is very dark and strange. The result does not seem correct considering the files used. I attached a screen shot of the result.

Other people running a previous version of the operating system do not appear to have this problem.

Any feedback would be greatly appreciated.

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Arkadiusz Slanda

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  • confused

Posted 6 years ago

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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Looks like there's something wrong with the exposure metadata (note how the EV is the same for the first two images).

It doesn't look like a proper bracket to compute an HDR image.

See how a proper bracket looks:

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Chris Cox

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Almost looks like you tried to fake 3 exposures from a single camera RAW file -- which doesn't work, and doesn't give any advantages because all the data in the RAW file fits in 16 bits anyway.
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Arkadiusz Slanda

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I'm following a book's example as I'm learning to use the merge tool and the three images I'm using are provided on the book's CD. The steps to do this are pretty simple but I can't duplicate their "normal-looking" merged image. If you like, I could provide you with the three images to see if you can duplicate my problem...

I'm wondering if there is a setting somewhere I need to reset... or if it's the Lion OS not cooperating with the latest Photoshop version.
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Arkadiusz Slanda

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I haven't contacted the book author yet but I had a buddy of mine try duplicating my problem on his Mac, using the provided files. The resulting image he gets matches the book's resulting image in the example. As such, I ruled out the files as being the cause of the problem.
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Do you have all the Photoshop updates? http://adobe.ly/PS-Up-To-Date

Have you tried restoring your prefs? http://adobe.ly/PS_Prefs
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Arkadiusz Slanda

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Yes I have the latest versions:

Photoshop Version 12.1 x64
Camera Raw 6.6.0.261

I did reset and restore all the default prefs and still no luck.
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Can you post the affected files? (using a service like Dropbox or YouSendIt)
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Arkadiusz Slanda

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The following is a link to a zipped folder containing the three files I'm using:

http://dl.dropbox.com/u/16661167/Mode...

I should mention that I tried running the merge tool directly from Lightroom and I was able to get the correct behavior for the merged Image. It seems that only when running from Bridge or Photoshop, the weird merged Image is created.

Another friend of mine tried doing the merge with CS 4 and he was also able to get the correct behavior.