New EF-s 55-250 IS
I have owned the Sigma 70-200m 2.8 ex apo, Sigma 100-300 ex apo f4 and the canon 70-200mm f4L. This lens is not as good as those but it wasn't in the $600.00 to $800.00 range. But it is excellent for the price. And the IS is the best I have tried. Here is an interesting compairson with my Canon 300mm F4L prime. The 55-250 really is a excellent lens for the price.