An excellent video.How do you find the 17-40mm? I sold mine i didn't like it on the 5DII.
Hi Adrian.Thanks for your comment.From what I gather, the 17-40mm can be a bit soft in the corners when used on a full frame camera like your 5DII. I've only used it on 1.6 and 1.3x crop bodies, where the worst bits are cropped out, so I'm pretty happy with it!
Not just soft but positively soggy. I'm glad it works on the cropped sensors as it is a useful lens.