REALLY? Let me tell you something, those Red Cameras are one of the best camcorders I've ever shot with. One time a friend of mine forgot to white balance the thing and it still manage to produce very detailed and color picture. I only managed to shoot on a RED ONE but I know David Fincher uses far advanced cameras but if anyone is interested in shooting a RED get the editing package with it. It will help rendering your images.They've mostly been working with digital cameras since SPEED RACER. I think the only time they shot on film since then was for CLOUD ATLAS, but they were using multiple formats so to give each storyline their own visual aesthetic.
If the IMDb info is accurate, RESURRECTIONS was shot on Red cameras. Given how much digital processing the first three films went through, it makes more sense to just go digital from the start.