If you remove the barrel distortion your image corners will be almost flawless,,, quite impressive actually.
Thank you. Looking forward to testing it much more in Scotland.
I agree in principle, although not always easy to remove barrel if there isn't a clear geometric reference in the picture.
Otherwise I wouldn't know how to develop lens correction files to use in my raw processor (Iridient) and whether that would be useful under all conditions (near and infinity focus).