16-35mm Vs 17-40mm Canon L lens?
Hey guys, What is everyone opinion on these lens and which is the best on to go for? Price: 17-40mm - £520 (http://www.digitalrev.com/product/canon-ef-17-40mm-f/MjE_A?googlebase=1&country=GB&gclid=CJuLxbGbrrwCFWoOwwod-UoADg)……