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Objektivkorrektur fehlerhaft bei Panasonic G9 mit Leica 12-60mm f/2.8-4.0


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Leica12-60-PhotoLab.jpg.62154c877d719576d997ba40a8a47ef3.jpgThis is not a bug but a deficiency in the lens correction which cannot work miracles. APhoto has identified the lens and applied its lens correction, you may like to adjust the distortion setting, I used -8%. This will result in transparent areas so I have used a macro which selects them, enlarges the selection then calls Inpaint. In this case it's done a pretty good job.
As a comparison I attach what PhotoLab did, the window bar is straight but rotated, this can be further corrected but the crop will increase.
It's a challenging situation and expecting perfect architectural geometry from a wide zoom is a bit too much.
Did you try using Silkypix, this may interpret the lens correction data which is contained within the raw file metadata?

Leica12-60.jpg

 

P1036086corrected.jpg

InpaintTransparentAreas.afmacro

Microsoft Windows 11 Home, Intel i7-1360P 2.20 GHz, 32 GB RAM, 1TB SSD, Intel Iris Xe
Affinity Photo - 24/05/20, Affinity Publisher - 06/12/20, KTM Superduke - 27/09/10

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Thank you for your comment. I opened the .RW2 files with Affinity- Silkypix Studio 8SE (Panasonic Version) and Darktable 4.0  and exported without any further action.

I thought that Darktable and affinity uses the same Database for Lenscorrection. the results are quite different. So i thoght Affinity does something wrong.

P1036085-Affinity export.tiff P1036085-Darktable 4.0 export.tif P1036085-Silkypix Studio 8SE export.tif

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The last post shows a different image P1036085, whereas the original post had P1036086
Anyway, I've done a quick comparision of both and to my eyes:
 - the barrel distortion is about the same
 - APhoto has produced less rotation of the window bar using negative Distortion adjusted to taste
 
I also include a screenshot of how PhotoLab Rectangular correction can be used plus the file - extension changed so that this site doesn't mangle it. The correction is pretty good but, as I mentioned above, the crop is tighter.
Trying to perfectly correct geometry can lead to neurosis if not full paranoia, it certainly affects me 🙂

ps can't seem to attach jpgs, modifying the extensions with a  Z didn't succeed so they're zipped, hope it works

P1036086-PhotoLabRectangularCorrection.Zjpg Stuff.zip

Microsoft Windows 11 Home, Intel i7-1360P 2.20 GHz, 32 GB RAM, 1TB SSD, Intel Iris Xe
Affinity Photo - 24/05/20, Affinity Publisher - 06/12/20, KTM Superduke - 27/09/10

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Thank you for your reply. i am quite new user of APhoto .- i bought the SW 6 weeks ago and had not worked often with it. Before i used Photoshop Elements and i was not happy with the possibilitys. When i opend the Raw file in PSE and then in APhote i was confused. (I am still a liitle bit confused) but your explanation helped me to understand some details. i will attache the first export of PSE - so you may understand my confusion.

P1036085-pse.tif

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Not sure what to say, the new file P1036085-pse.tif is slightly warmer than P1036085-Silkypix Studio 8SE export.tif but geometrically they look identical. Are you sure that Silkypix is set to apply lens correction?

Microsoft Windows 11 Home, Intel i7-1360P 2.20 GHz, 32 GB RAM, 1TB SSD, Intel Iris Xe
Affinity Photo - 24/05/20, Affinity Publisher - 06/12/20, KTM Superduke - 27/09/10

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It seems that Silkypix 9 introduced lens correction, this link https://silkypix.isl.co.jp/en/how-to/function/lens-profile/ is a bit weird as it mentions Lensfun, I had assumed that it would use the distortion information in the file metadata, maybe this just works for jpegs. I tried Silkypix a while ago, didn't like it and uninstalled it soon after.
I have Adobe DNG converter which contains correction data for many lenses but not your Leica so that explains why PSE does no correction.
If you are serious about lens corrections then Capture One and PhotoLab are probably the best. I've used DxO, now PhotoLab, for many years, it's not cheap but I haven't found anything better, you need the Elite version then there is Viewpoint which works as a plugin and greatly improves geometry corrections. I see that both Photolab and Viewpoint have recently been revised....more expense

Microsoft Windows 11 Home, Intel i7-1360P 2.20 GHz, 32 GB RAM, 1TB SSD, Intel Iris Xe
Affinity Photo - 24/05/20, Affinity Publisher - 06/12/20, KTM Superduke - 27/09/10

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