10 out of 10 points and recommendedNearly perfect even with large shift/tilt movements. The best architecture lens around, especially when mated with 21MP full frame bodies.The price but then again there's nothing else as good and if you shoot professionally it will easily pay for itself. Must use your hand to shade lens, which isn't a big deal since you need to use a tripod.
I shoot architecture professionally and this lens mated with a 21MP full frame is a dream come true. I also use the lens for landscapes and panoramas, although, the 24 TS-E might be better suited for that application as it allows for front filter use, includes a lens hood and does not have the finger/dust attracting protruding front element. For architecture or urban landscapes that include any tall buildings the 17 is your best bet. A bubble level and tripod are essential, along with LiveView for setting focus and any tilt.reviewed January 8th, 2010 (purchased for $2,350)
I have used all the TS-E and have owned this lens since August. As a result I have lots of photos along with full reviews of all three wide angle TS-Es (17, 24 and 24 II) on my website: