Yes, but not much. I have a Century Graphic and a baby Speed that both take 2X3 sheet film (The Century has a Graflok back and a roll film back, but the Speed is strictly sheet.) I often take the Century along as a black and white camera while using my Fuji rangefinders for color. It doesn't get a lot of use, but its use is significant. I have been using EFKE 100 film, which I think is OK but not super. I have sometimes used the (very limited) movements on these cameras, and I occassionally use plus or minus development of individual sheets. These are nice options to have. I feel I have a real need for 2X3 sheet film, but my usage won't do much to keep demand up and manufacturers producing. I've been thinking of cutting down some 4X5 color and trying it, but I haven't done anything yet.