I'm looking at it as a poor man's alternative to the Sigma 17-70mm. Does anyone have experience with it? I've seen some good reviews and some meh reviews. A friend has asked me to take pictures at her outdoor wedding in October and I was looking for something that would be good for small group shots (maybe 10-12 people) and some portraits. I'll be using an APS-C camera. I know I'd give up a lot on the wide end, but I don't tend to shoot a lot wider than 24mm.