Aurora HDR 2019 is misinterpreting the EV for an HDR DNG image and is initially processing the image as though it’s -4 EV (underexposed by 4 stops).
When Aurora HDR 2019 opens the image, it tries to correct for the ‘underexposure’ and overexposes the image to the point where details cannot be recovered.
I’m using Lightroom CC 2019 and the current Aurora 2019 plugin. I’ve tried exporting using the Lightroom plugin, the option to ‘Edit a Copy with Lightroom Adjustments’, as well as ‘Open Source Files’. The issue happens on any single exposure HDR DNG.
As you can see by my screenshots, Lightroom is showing in the histogram that the image is well balanced and well exposed. It is NOT 4 stops underexposed.
When I import the 5 separate bracketed images into either LR OR Aurora HDR, there is no issue blending the images. The images are in steps of -4EV, -2EV, 0EV, +2EV, +4EV. The resulting HDR image from either comes out good from the source files.
My process is as follows:
- Import RAW images to LR 2019.
- Correct for lens distortion, straighten, sync settings
- Stack and develop as HDR in Lightroom
- Spot removal, brush, etc. on HDR DNG in Lightroom.
- Send resulting HDR DNG image to Aurora HDR for processing (as a single image)
- Process in Aurora HDR 2019 with preset.
- Re-Import Aurora HDR TIFF to LR for cataloging and exporting to JPEG for clients.
Initial HDR DNG merge in LR.
Edited HDR DNG In LR. Note, histogram shows balanced image.
Exporting to Aurora HDR 2019 w/ LR Adjustments.
Image preview shows a well exposed image, but EV estimation is wrong (-4 EV).
When Aurora HDR opens the image and applies initial correction (no preset yet), it is 4 EV overexposed.
No amount of correction can bring back the clipped highlights.
As we can see, the original raw files show a balanced separation of EV, and the resulting image is balanced when imported from original raw files.
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