I have a Linhof Techno digital system with 35mm and 47mm non-retrofocus lenses. These are rather dark on the Linhof gg + fresnel. I'm considering upgrading to a Maxwell screen, and Bill has suggested a "HI-LUX Brilliant Matte 2.3" which I think is the widest he has. I guess 2.3 means 2.3 inch focal length, that is a bit longer than those 35mm.
I've heard a lot of great things about Maxwell screens on the 4x5" film cameras, it seems to be "the best" out there. But I haven't heard much about them on digital systems where focal lengths are even shorter. Has anyone used them?