Camera Raw/Lightroom: Banding pattern when using lens profile corrections

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  • Updated 4 years ago
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Hi my name is Benjamin Root. I would like to report a bug in both Camera Raw and Lightroom. More specifically related to the lens profile corrections. Photoshop CS6 and CC will be discussed as well.
So, here is the problem:
I open a few raw files, of the night sky, (for making startrails) in either Camera Raw or Lightroom and edit them. Then I export from Lightroom, or use Bridge if Camera Raw, and load then into Photoshop layers. I change the blend mode to Lighten on the images to create the startrails. Now all of a sudden, there is banding in a pattern that looks similar to a basketball. So, I reset the raw file and used them as is (both from Lightroom and Camera Raw). Tried the same steps in Photoshop again – no banding. I also tried a different camera and different lenses; same result. If edited, bands; if no editing, no bands. After talking to forum members on both Adobe and Luminous Landscape, we were all able to produce the same results...On different versions of Lightroom, Camera Raw, and Photoshop. After trying different things, we finally deduced that if we turned on lens profile corrections, in Camera Raw or Lightroom, the banding occurred.

I would be happy to provide any additional information or files.
I also encourage to take a look at and read through the solving thread on Luminous Landscape: http://www.luminous-landscape.com/for...

Thank you,

Benjamin
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Benjamin Root

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Posted 4 years ago

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Photo of Rikk Flohr

Rikk Flohr, Official Rep

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If you stack and blend mode your exposures first and apply Lens Correction after finishing, do you still see the banding?
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Benjamin Root

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I have not tried the lens corrections in Photoshop itself. I will see what I can do. Once I save as JPEG, the lens profiles don't work in Lightroom or Camera Raw.
Here is the link to ten of my raw files, edited and saved as DNG (with lens corrections): https://www.dropbox.com/sh/07zpnmp0fa...
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Rikk Flohr, Official Rep

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Try saving it as a Tiff. The Lens profiles for Raw should work on a Tiff.
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Benjamin Root

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Well, I couldn't find the right lens profile in Photoshop, or in Camera Raw once I saved as Tiff. From the profiles I did find, I couldn't really see any banding. Of course the banding isn't really very visible when I edit the raw file either.. Only after stacking and using lighten.
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Rikk Flohr, Official Rep

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If you know what lens you used, you should be able to find the right profile. I have never seen the banding myself but then I always apply the lens correction to a stack set post stack not prestack. .
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Benjamin Root

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Okay, I'll look further for the lens profile. I hope the developers will look into the issue with Camera Raw and Lightroom. It is irritating to not be able to apply the correction when doing the main editing..

Benjamin
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Benjamin Root

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P.S. Dug a little deeper and realized it's distortion correction, more specifically; doesn't happen with Vignette removal.
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Rikk Flohr, Official Rep

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That is exactly as I would expect it to be.
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Benjamin Root

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Alright.. Thank you.. Are you/have you notified developers of the issue?
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Rikk Flohr, Official Rep

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No. You have to provide more information to get an engineer to test it:

OS Version:
Lightroom / ACR Version number:
Camera Model:
Lens Model:
Focal Length if applicable (ie: Zoom setting)
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Benjamin Root

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Windows 7 Professional

Lightroom 5.7: Lightroom version: 5.7 [991162]
License type: Perpetual
Operating system: Windows 7 Business Edition
Version: 6.1 [7601]
Application architecture: x64
System architecture: x64
Logical processor count: 8
Processor speed: 3.4 GHz
Built-in memory: 32737.9 MB
Real memory available to Lightroom: 32737.9 MB
Real memory used by Lightroom: 665.8 MB (2.0%)
Virtual memory used by Lightroom: 642.8 MB
Memory cache size: 304.2 MB
Maximum thread count used by Camera Raw: 4
System DPI setting: 96 DPI
Desktop composition enabled: Yes
Displays: 1) 1920x1080

Camera Raw 8.7.1.311 (for Photoshop CS6)

Cameras: Nikon D610, D3200
Lenses: Nikon AF-S 18-55 mm F/3.5-5.6 @18-28 mm, and:
Nikon AF-S 50 mm F/1.8G

It did the same thing on other users' computers and different versions of ACR and Lr.

Thank you very much! Let me know if you need more information..

Benjamin