Sigma 50-150 - $800
Sigma 50-150 f/2.8 APO DC HSMAll of that adds up to a great lens for a cropped sensor camera like my old 50D. On a crop sensor camera it's more like 80-240. This lens is SHARP, QUIET, and has the IMAGE STABILIZER needed for handholding those higher shutter speeds. Recently upgraded to a 5d mk II and need to upgrade to a full frame lens now.