Here are a few shots of the unboxing.
It is a reasonably sized lens considering that it has a 180 degree field of view diagonally from corner to corner.
Here it is next to my Sigma 10-20 EX DC f4-5.6 which is a pretty good size chunk of glass in it's own right. This lens is reasonably enough sized that I would be willing to hike with it. Just imagine the breathtaking shots I can take looking over the edge of a steep cliff!
First shot, bounced my flash off the ceiling. Problem... flash is going to be tricky. I like to bounce off things, but this lens includes too many things IN THE FRAME which will make it just a little more complicated!
This is with a second pass of 100 of correction, still not quite there, though the wings on the sides are near straight, the fountain edge is still pretty curved.