The Chamonix wet plate holders are very expensive but are top of the line when it comes build. The holders are made of would and carbon fiber. The cost was $220 USD including shipping. I love the 5x7 format and have multiple cameras that can shoot it, so why not give it a try. AMBROTOS KANATA is just starting but I should have the following plate size options, 4x5, 5x7, 7x7, 8x10, 11x14, 16x20, 20x24, 27x35 and 35x35