I used a Canon Eos 350 D and a Sigma 17-70mm lens + a polarizer filter.Kampflamm, what camera can lens did you use? your photos look better than mine. have a look at my thread of London, http://www.skyscrapercity.com/showthread.php?t=650606 I'm using a Nikon D200, 17-55mm F2.8, and 70-200mm F2.8