Great lens, very solid design, smooth quiet action, excellent look & feel!!

Excellent lens!! Keep in mind I am reviewing the better F/3.5 and not the F/4-5.6 lens which, from what I researched, is not supposed to be quite as good... It's perfect for tight places and close up shots where you need to get in as much area as possible. I use it to put together interior shots for real estate listings. It makes the room look bigger! There is a very slight distortion towards the outer edges if focused all the way out to 10mm or close to it, but goes away if the focus is brought in closer to the middle of 14mm or so. IT'S NOT A DEAL BREAKER AT ALL and actually it's a very good picture for how wide the lens will go. The only pet peeve I have, and it's nothing that cannot be overcome easily, is that the lens is bigger in diameter (82mm) than the standard 58mm that normally comes with a Canon EOS rebel, and it focuses in soo close that when doing a shot that needs flash, the lens actually creates a shadow in the shot. I solved this by adding the additional flash as a slave, but hung it underneath and towards the front of the lens so it would light up the bottom of the shot. The camera's built in flash has to be used for the added flash to work in slave mode and the built in flash takes care of the top area of the shot. Beautiful photo's!!!Read full review