Originally Posted by P1et
It's amazing how much better my 50D is with this lens mounted on it. I have only had it for a few days, so still getting used to it.
Great lens, great car.
Did you use Digital Lens Optimizer software to square up that picture? At 28mm I would have expected more geometric distortion on the garage's straight lines and the paving at the edges of the frame. That's incredibly good if it's straight out of the camera.
The 24-105mm is my main lens on my 5D MkIII, but I use DxO Optics Pro to correct for geometric errors, CA, vignetting, etc. DPP has DLO built into it and you can add it into Lightroom. It looks to me like you've already discovered DLO, but, if not, check it out.