Ok, I have this new Sigma 10-20mm lens ... just got it yesterday!
I have taken a few (several) photos and the results are rather surprising, which I expected in a way. I.E.: very wide angle of view and distortion at the very widest focal.
I have included a couple of samples here to share with the pros!
One big question renains: how do we correct the "leaning" of the church in that first picture? I have browsed through the Help section of PS and found some stuff on perspective, distortion, vanishing point, etc... but seems quite complex.
Anyone suggesting a quicker and not-so-difficult way to adjust the "leaning"?
Photo 1:
Photo 2:

This one I like ...it was obviously taken straight on at a higher focal.
I did, of course, lean again to the right on that second shot! Guess it,s back to the straightening tool!