camera raw lens profile correction creates pattern
For low key photos that have more dark areas, a pattern is visible when lens profile corrections are enabled. This pattern is visible in Bridge before opening a raw file in ACR, even when the profile is switched off for a file. When exporting a jpg from ACR with the lens profile enabled, the pattern is applied to the image.
I found out about this prolem just recently because I bought a modern lens. Since 2017 I have been using vintage lenses and as they have no profiles in ACR, I had no issues. This problem is not new according to what I managed to find. Here's a post from the DPreview forum in 2021 that describes the same thing: https://www.dpreview.com/forums/post/65642376
Before 2017, I used profile corrections for Pentax DA 18-250mm f/3.5-6.3 ED AL IF - and had no such issues as now. But tested profiles for this lens now, and the pattern problem applies here too.
So, this issue is not lens-specific or raw file type specific. Although, the patterns shape is indeed different for different focal lengths of a zoom lens.
Bridge 13.01.583
ACR 15.0.0.1264
Windows 10.0.19044
htj0rvald
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Kukurykus
commented
Use 'Bugs' conversation type in: https://community.adobe.com/t5/camera-raw/ct-p/ct-camera-raw