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Poor lens profiling for Sigma FE 24-70mm F2.8 DG DN A019 - inverted vignette

Community Beginner ,
Apr 29, 2021 Apr 29, 2021

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The lens correction profile for the Sigma 24-70mm overcorrects the vignette at the wider end, it's not as offending in daylight scenarios but in studio or darker lit settings I'll find the corners overcorrected by about a half a stop. 

 

Is there any way I can change or fix this Profile myself?

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Community Expert ,
Apr 29, 2021 Apr 29, 2021

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You can't change the profile, but you can change the vignetting slider and then save this as the new lens default.

 

-- Johan W. Elzenga

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Community Beginner ,
Apr 29, 2021 Apr 29, 2021

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I see, that's a part-fix. 

But it only overcompensates at the wide end, so I'll end up having to just do the same work at a different place.
Is there anywhere I can report this, apart from here?

 

I've resorted now to not using profile correction when shooting on the wide end, but it does put a wrench in the works. 

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LEGEND ,
Apr 29, 2021 Apr 29, 2021

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I downloaded some sample ARW files shot with this lens from the below website and the 24mm vignetting correction looks good. If anything the extreme corners appear slightly under-corrected. If you can upload an ARW file that exhibits the issue to a file sharing site I'll take a look at it.

 

https://www.dpreview.com/samples/2698334887/sample-gallery-sigma-24-70mm-f2-8-dg-dn-for-sony-e-mount

 

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Community Beginner ,
Apr 29, 2021 Apr 29, 2021

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RAW isn't supported here, so here's a photo with and without the corrections.  Would you be fine with an iCloud link or dropbox?

2020-12-07-untitled shoot-0207.jpg2020-12-07-untitled shoot-0207-2.jpg

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LEGEND ,
Apr 29, 2021 Apr 29, 2021

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Dropbox is good. Thank you.

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Community Beginner ,
Apr 29, 2021 Apr 29, 2021

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https://drive.google.com/drive/folders/18w1I6hMQnsDbLsas2R9FOqtZqD8qqEjl?usp=sharing

 

No dropbox, I'm afraid. But here's a Drive link! 🙂
Thanks!

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LEGEND ,
Apr 29, 2021 Apr 29, 2021

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There's no access privelages.

 

 

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Community Beginner ,
Apr 30, 2021 Apr 30, 2021

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LEGEND ,
Apr 30, 2021 Apr 30, 2021

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In the ARW file you provided the Lens Profile Vignetting appears over-corrected. The below ARW file shot at the same 24mm focal length and F4 aperture with the same Sony ILCE-7M3 camera exhibits the issue in the lower-left corner.

https://www.dpreview.com/sample-galleries/5115760507/sigma-24-70mm-f2-8-dg-dn-e-mount-sample-gallery...

 

I suggest creatitng a report of this issue at the Photoshop family feedback forum. Include a link to the report back here. Thank you.

https://feedback.photoshop.com/

 

Sony 24-70mm F2.8 DG DN Art019 24mm F4.jpg

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Community Beginner ,
May 07, 2021 May 07, 2021

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Thanks for having a look at it, but in particular providing me with the right avenue of response. 

Hopefully they'll do something about it. 

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