Hello, I have seen on several web sites that Wisner camers don't seem to be very popular. Is there some real problems with the cameras or were the problems more related to the lack of customer support and just bad service. They seem to be well built cameras. Good or bad? Would like to know more about them. Anyone know the size of the lens board for a Wisner 8x10 or any other brand that will fit? What would be the minium focal length lens for the 4x5 and the longest lens for a 4x5? Wanting good general info about the Wisner cameras. Thanks George .