I hate to be a party pooper, but I have a friend who bought a new big Tiffen DP and it's been one big bundle of trouble, and getting service on it has been a nightmare. If you go to the factory in Alabama you get in line and wait up to a week to get service and are only allow so many hours of service and if they don't get at all of the problems you get back in line. The dealer service has been worse yet. But he did get some problems fixed an a independent dealer where Tiffen did pick up some of the cost. I won't say anymore