I have a 16x20 project from scratch in the making, and so far the camera is finished and lens is on its way (A 24" Red Dot Artar in shutter) but I still lack a back and a film holder (considering the price of film and my tendency to expose what I carry I want to start with just one holder).
Maybe I will try to build a holder but buying one is also an option.
Does anyone one know of where to buy 16x20" holders?

Thanks

Jesper