Banding / artifacts in star trails with Sony A7R-III

New Here ,
Jun 13, 2022 Jun 13, 2022

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When exporting image files from Lightroom Classic (11.2) with chromatic abbreation and profile corrections enabled (Sony FE A7R-III / Sony FE 16-35mm F2.8 GM) and merging those photos with Lighten blend mode in Photoshop (23.2.2) by stacking them as layers, two concentric bandings that cover across the entire image emerge. Disabling vignetting to 0 reducde the effect to some extent but doesn't remove it completely. Disabling both chromatic abbreation and lens corrections completely removes the effect entirely.

Screen Shot 2022-06-12 at 9.09.44 PM.png

 

I reported this issue on https://www.dpreview.com/forums/post/66239744 but there is another report of the same issue in 2017: https://www.dpreview.com/forums/thread/4160819

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New Here ,
Jun 14, 2022 Jun 14, 2022

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I just found out that zero'ing distortion correction with chromatic abbreation and the rest of profile correction enabled fixes the issue as well so the distortion correction is the issue here.

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