Hi I'm looking for a viewfinder that would be suitable for a 5x4" camera. I popped into a local dealer today, and they had an old Linhof viewfinder. It was variable between 90mm and 300mm(I think), and had a mask for 6x9cm. It also had a rotary knob on the back that moved the body of the viewfinder downwards to correct for parallax. I'm tempted to buy it, but just wondered if there was anything else available. Are these still available new, and if so, how much are they. This old one was around $300. The only other thing I might want, is something that will cope with shorter lenses than 90mm.