I think I got the better of this deal.I traded my big Ma(sigma 50-500) for a D300 last week.The camera has only 17,000 acquations.I paid $400.00 for big Ma so I don't think I'm out anything.I'm going to use my Sigma 70-200 f2.8 and 2x TC as my travel gear this year.The 3 should go together real fine.