Burned Highlights
Greetings to the Community!
I have a problem with Aurora HDR 2019 and Lightroom. They don't seem to understand well each other in some operations. When I export 3 images, either "Open Source files" or "Edit a Copy with Lightroom Adjustments" mode, Aurora HDR tends to overexpose and burn high lights in the same proportion as the highest exposure frame. If there are burnt lights in the frame with +2Ev, then the same lights will be burnt in the same amount in the image shown by Aurora HDR and in the output file. This happens even when correct exposure of images has been detected (-2Ev, 0Ev, +2Ev). This problem is very disappointing, as an HDr is supposed to avoid burnt out lights.
If it is Lightroom that creates an HDR with 3 images and exports the resulting .dng to Aurora HDR, then in Aurora dialog appears as underexposed -2EV, even though it is correctly exposed, and the program compensates it by overexposing the HDR +2EV image, and the resulting image is burned again. This can be corrected by manually adjusting to -2EV exposure in Aurora HDR, but every time a preset is applied the problem appears again.
Is there any way to indicate to Aurora HDR manually what is the correct exposure of a frame, so that this problem could be solved?
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Hi Manuel,
The results delivered by the default in Aurora HDR will vary based on the images you load. In order to better understand the issue we need to see what images you're working with.
Please send us the bracketed set of images along with your results from Aurora and Lightroom to support@skylum.com and we'll investigate the issue. If the files are too large to email you can use WeTransfer.com and then send us the shared link in your email to us.
We look forward to hearing from you.
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Per Manuel's request over email, I'm linking the files he sent to the support team here: https://www.dropbox.com/s/3v42lhfi20thchm/MANUEL%20R.%20SILGO%20LIGHTROOM%20ISSUE.rar?dl=0
Here's the comments from our developers regarding the two issues Manuel mentioned:
- There's an occasional issue with Aurora '19 when it may burn the highlights due to data loss during merging. We know about this issue and are working on the fix. It's unlikely that we'll include it in the next update for Aurora but you can be sure that we'll address it. This issue doesn't seem to affect the majority of merges Aurora produces.
- The issue with Aurora getting an underexposed file seems to be connected to Lightroom. When Lightroom creates a merge, it writes -2 EV into the exif, even though the merge is properly exposed. Aurora tries to compensate for what it thinks is underexposure, and this results in artifacts. We recommend to check the EV of the merge you send from Lightroom to Aurora and correct it if necessary.
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Hi:
As I was previously supposing, the first issue of burned highlights is a problem concerning Aurora HDR exclusively. As I mentioned above, a HDR software is needed and designed to get rid of burned areas, so it´s difficult for Skylum to explain why this propblem is happening and has not been adressed since the early beginning.
The second issue concerning Lightroom would be easly resolved by manually adjusting the correct exposition in Aurora HDR every time the problem appears, but unfortunately Skylum does not yet contemplate this possibility.
Thanks for your support.
Manuel R. Silgo
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