I'm confused about the 'Lens Correction' module. Sometimes it seems that I should use it, but sometime the lines get crooked. This happens especially when zoomed.
For example, I shot two pictures into RAW and JPEG (yes, I know they are not focues properly, but that's not the point - base and zoomed. Both with the same camera with the same lenses but different focal distance.
JPEGs look like what i saw on my live view display on my camera during taking the photo and then after checking it. The raw file for one of them looks similar to appropriate jpeg when i apply the lens correction. The other raw, however, seems correct without the lens correction module and after applying the lines are crooked.
Any idea why this could be?
Here is the link to the forum where I uploaded the files: https://discuss.pixls.us/t/lens-correction-module-question/34045/2
zoomed file (zoomed.jpg and zoomed.cr3) which looks incorrect with the lens correction module applied on raw file. The base file (base.jpg and bease.cr3) looks correct after applying the lens correction to the raw. I also attached the screenshots from darktable with the zoom.cr3 file opened with and without the lens correction module active.
I'm using the Canon EOS 90D camera with Canon EF-S 18-135 IS USM lenses
In my camera I have all lens corrections set to 'ON':
peripheral illum correction, distortion correct, digital lens optimizer
I have darktable 3.8.1 running on Ubuntu 22.04 64bit
Here are the versions of liblensfun I have installed:
ii liblensfun-bin 0.3.2-6 amd64 Lens Correction library - Utilities
ii liblensfun-data-v1 0.3.2-6 all Lens Correction library - Data
ii liblensfun1:amd64 0.3.2-6 amd64 Lens Correction library - Runtime files
ii python3-lensfun 0.3.2-6 amd64 Lens Correction library - Python3 module
Thanks for any suggestions,