Thanks to elitotaco for straightening me out on color profiles- I was about to throw my laptop out the window. All these were done with the Sigma 18-50, which is turning out to be a very solid lens. Only complaint I have so far is some minor chromatic abberation in the corners in contrasty shots (see below). Other than that it's a very fun, fast lens.

<img src="http://CoachZed.smugmug.com/photos/48765646-O.jpg">

<img src="http://CoachZed.smugmug.com/photos/48765674-O.jpg">

Rough neighborhood, this:

<img src="http://CoachZed.smugmug.com/photos/48765653-O.jpg">

<img src="http://CoachZed.smugmug.com/photos/48765663-O.jpg">

<img src="http://CoachZed.smugmug.com/photos/48765686-O.jpg">

That second shot (B&amp;W spiral stairs) is pretty cool.