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philg67847318
Participant
March 24, 2021
Question

Sony A7iii + Sigma 24-70 2.8 DG DN lens correction over-correcting vignette at 24mm

  • March 24, 2021
  • 1 reply
  • 1747 views

Lightroom 10.2 with the above combo is over-correcting vignette at 24mm, leaving white in the corners of the image in certain scenarios:


I can turn the vignetting down to 30-ish which resolve this but I then don't know if the Distortion settings are correct anymore.

 

I am on lens firmware 0.2 from Sigma which is the latest. I do have in-camera profile corrections turned on but I believe this simply instructs Lightroom to apply a certain profile rather than alterting the RAW file directly- please correct me if wrong.

 

Is this a Lightroom issue or something I need to change?

 

RAW is available here - I convert to DNG on import but I've taken the file directly off the card for this example. Would the DNG conversion be affecting this?

Thanks

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    1 reply

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    philg67847318Author
    Participant
    March 24, 2021

    It seems that disabling Shading Compensation in-camera largely solves this- the vignette correction is still a little strong with it off but it's much better than white-ish corners on the image. Perhaps LR could detect if this is enabled, and dial back the vignette compensation a bit?

    P
    philg67847318Author
    Participant
    March 24, 2021

    Shading Compensation on and off in-camera. Both with the auto-applied LR lens profile. Same aperture as the photo in the OP.

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