Perhaps I should now introduce another of my "Toys". I use DXO Labs "Optics Pro" V4 and am currently testing the public Beta of V5 - stand alone Elite. This software
automatically corrects lens softness, distortion, removes dust, corrects perspective FOR CERTAIN CAMERAS AND LENSES - Most Cannon, Nikon etc. Here is a link that explains what it does
http://www.dxo.com/intl/photo/dxo_op...tures/overview
I have used V4 for some time and today I have started on the Public Beta Testing of V5 - To put it through it's paces I've been to Little Moreton Hall in Cheshire today and for those of us who know it, I think it is fair to say there is hardly a proper right angle in the place - For those who don't - It is an Elizabethan Half Timber Moated Manor House.