Need an affordable sports or wildlife super telephoto lens? The Sigma 50-500 APO DG OS HSM Super-telephoto lens might just fit the bill. The lens is light enough to use hand held but powerful enough to fill the frame with wildlife at a safe distance. What's best is that this lens is effectively an 80-800mm lens on a crop sensor body.

Where to buy: Sigma 50-500mm f/4.5-6.3 APO DG OS HSM SLD Ultra Telephoto Zoom Lens for Canon Digital SLR Camera