11 Replies Latest reply on Jan 8, 2017 9:02 AM by Just Shoot Me

    Lens correction profile makes distortion worse at certain focales

    30898239

      Hello,

       

      I have a Canon 100D with a Tamron XR Di II 17-50 f/2.8 lens and Lightroom CC 2015.8. Vignetting correction works fine, no problems there. Chromatic aberration correction seems fine too, no matter the focale.

       

      Distortion correction is another topic. At 17mm it works perfectly well. The longer the focale, the worse it gets. I have a picture taken at 32mm and the distortion actually gets _worse_ when the lens correction is applied. There's a row of picture on the wall, so it's quite easy to see the barrel distortion. It is slightly worse after correction and definitely not corrected.

       

      Any ideas what the issue could be?