The attached article was posted recently on Peter's List.
Enjoy the read.
Ed
[QUOTE=elkcub]
Moderator request: It would be appreciated if this thread could be retitled as "The rolling-ball effect and pincushion distortion," by Holger Merlitz." The full tile of the article is apparently too long.
Thanks,
EH[/QUOTE]
Done
Happy New Year to you
D