I'm pretty sure I've given my thoughts on this before. But I was thinking about this again yesterday, as I was having coffee out in the back yard. I really do like the small format look. Grainy, but not overwhelmingly so. And all that rich colour. I've seen a lot of examples of Super 16mm frames, scanned properly on cinema grade scanners. They look terrific. So I'm thinking, why not build an SLR system that takes 16mm film? The system would be an SLR, with a typical mirror box setup. But instead of an optical finder, you'd have a sensor above the mirror. It would feed a nice, big EVF. Resolution would be switchable between HD and 4K. The film would run horizontally, and the gate would be 14.82mm x 12.52mm - double the surface area of a Super 16mm frame. This is a bit on the square side, but the system would offer anamorphic lenses as well as conventional lenses. The frames would be pin registered, allowing easy scanning and predictable cartridge lengths. A roll of film would be as long as maybe 70 exposures or so, maybe a bit more. If my rough calculations are right, you could use the Micro 4/3 lens mount, which would mean that you won't have to develop a new mount. And you have at least some lenses that you can focus manually. Here's the thing: would it sell?