The full name of this lens is Tokina AT-X 116 Pro DX II
It comes with a petal style hood
It is a solid piece of glass and quite heavy. That could be a turn off for some, but really if you are buying this lens then you have a special need for it such as real estate, or group portraits. it zooms very smoothly and focuses fast. There is a little noise in the focus motor but not a big deal in nearly all settings. It has the Tokina push-pull ring to switch from auto to manual focus and I really like that feature. No fumbling for a little switch to change to manual focus.
The lens is very sharp with not as much distortion as you would expect at 11mm. Keep in mind again, it is a DX lens with a crop factor on a Nikon of 1.4, Canon would be 1.5 if I am remembering correctly.
Below is a picture of my parlor which is about 10' X 10' taken with the Tokina at 11mm with no distortion correction, straight as shot in camera:
Below is the same shot of the room with the 18-55mm kit lens standing in the same spot zoomed out to 18mm:
You can see the benefits for real estate work.
Just for reference, below is the same shot taken from the same place with a 35mm prime:
Another big plus is the fact that this lens is f 2.8 so I expect it to really shine in low light situations (no pun intended).
Other than the weight, one other drawback is the fact that it takes 77mm filters and I don't have anything else that takes that size.
The other drawback is that due to the size of the lens, it casts a shadow on the floor if you use the on-camera flash.
So to sum it up, if you have a need for a super wide angle lens, check out the Tokina 11-16 mm f2.8 Pro DX II. It is a very solid, smooth working lens. A lot of glass for the money
Especially if you can find a good deal on Craig's List
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