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dominiks92829317
Participant
October 3, 2023
Question

Vignetting problems with lens profile for Sigma 85mm F1.4 DG DN

  • October 3, 2023
  • 2 replies
  • 1139 views

Hi, I am using a Sony A7IV with a Sigma 85mm F1.4 DG DN A020 lens. Unfortunately the lens profile fails badly at correcting the vignetting, see the attached examples. Both are with the lens profile applied.

 

I am using Lightroom Classic 12.5 on macOS. The camera and lens software are up to date. 

 

 

    This topic has been closed for replies.

    2 replies

    Rikk Flohr_Photography
    Community Manager
    Rikk Flohr_PhotographyCommunity Manager
    October 4, 2023

    We've contacted Sigma with this information and asked them to review their lens profile. 

    Rikk Flohr: Adobe Photography Org
      M
      Mary2605678229qs
      Participant
      February 2, 2024

      Has the profile been updated? I am seeing similar troubles with this lens.

      johnrellis
      johnrellis
      Legend
      October 3, 2023

      [This post contains formatting and embedded images that don't appear in email. View the post in your Web browser.]

       

      The camera is embedding a lens profile in the raw that, per Sony's instructions, LR automatically applies:

       

      As you can, that profile corrects only for chromatic aberration, not distortion or vignetting.


      Sony's Imaging Edge application also allows a distortion correction to be applied, but not vignetting. So apparently there are no instructions embedded in the raw file for correcting vignetting:

       

      Technically, Adobe could profile the lens and include the lens profile with LR, or Sony could enhance the embedded lens profile recognized by LR to include corrections for distortion or vignetting.  But there's a contractual business relationship between Sony and LR, the terms of which are not disclosed, so we don't know which company would be responsible for this enhancement.

       

      johnrellis
      johnrellis
      Legend
      October 3, 2023

      Moderators, @Rikk Flohr: Photography, please merge with the Lens Profile Requests thread:

      https://community.adobe.com/t5/camera-raw-discussions/p-lens-profile-requests-and-information/td-p/12354777

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