I have ordered a Chamonix 4x5 for delivery by July 2008. I have a question on the back and GG. I know this has a Graflok back, but I want to know if just the screen can be removed to insert a graflex 4x5 to 6x8 rollfilm back? I have not seen any images that show the screen can be removed like this. I currently have a Canham DLC where this is possible. I am hoping I do not need to buy a graflok adaptor?