Hi everybody! I’ve taken a bunch of photos of the babies recently, including some with a borrowed Canon 24-105 F/4L lens. I have the 70-200, which is great for closeups, and great for ONE baby, but not quite wide enough for two. However, the Canon lens (or the 24-70) is out of my price range. Very far out of it. So I started looking around at other options like Tamron, Sigma, and Tokina. Does anybody have experiences with a decent, fast lens from brands other than Canon or Nikon in this zoom range? Any recommendations? I’d like to buy one used if I can find it, to further the keeping-on-a-budget factor.

Thanks!