It was a dull and overcast late afternoon but I decided to give my new 17-40mm a try at our lake. All images taken with Canon EF 17-40mm f4 L lens on Canon EOS-1Ds using Program mode and ISO 200. 1/500sec at f5.6, 23mm. C0EW2619 by Ray Allen, on Flickr 1/500sec at f5.6, 22mm. C0EW2621 by Ray Allen, on Flickr 1/500sec at f5.6, 40mm. C0EW2625 by Ray Allen, on Flickr
Thanks, Gary. I have updated the original post above with more info. I didn't realise that I had not taken any at 17mm. Here's one I took at 17mm on the day I got the lens. You really have to keep the camera vertical with this lens on!
Nice work Ray, I too have that lens. My problem is keeping the horizon level. It curves upwards or curves downwards, no fault of the lens, its me!
Thanks, porkphoto. Thanks also for the warning. I have not experienced that yet but I can imagine that it could happen at the 17mm end of the range if the back of the camera is not kept vertical. I hope that "Lens Correction" in either LR or ACR would help fix it.