Summary: Great telephoto lens! The Canon 500mm lens is way out of my price range. This Tamrom SP 200-500mm/F/5.0-6.3 LD AF IF Di lens is awesome. Pictures are clean and crisp of birds from great distances. Autofocuses well with use of both the Tamron and Canon 2x teleconverters.
Summary: This lens is worth what they ask for it. That is, it does not compare with the sharpness one would expect from a brand Nikon lens but the picture quality is fair. Don't expect too much bokeh or low-light capabilities. For shooting outdoors at reasonable speeds, this is a great lens.
E-Bay, Pay Pal and Tamron, Quality that goes hand in hand.
8 April 2012
Summary: The Tamron 200 to 500 zoom lens is an outstanding lens and very easy to handle with a monopod. The lens is sharp as a tack and the auto focus works great on my CannonEOS 400D. I have been using Tamron Lenses swince 1969 and have never been disapointed. This is a wonderful lens and a great adition to my camera bag.