« on: March 11, 2012, 08:37:27 PM »
IMO, I don't think there will be a new version anytime soon because it's not badly in need of an upgrade. I purchased mines for $599 during the rebate and it has to be one of the best deals for a lens. It's razor sharp (even cropping it at 100%) and the AF is extremely fast, works best during daytime since its F4 and doesn't have IS. Any new release will be more expensive if there is improvements. I say buy it now and be happy.