> Or, put another way: you can undo effects of a lens No, you most definitely cannot. The roots of computational photography are in things like deblurring, whi

> Or, put another way: you can undo effects of a lens No, you most definitely cannot. The roots of computational photography are in things like deblurring, which in general do not have a nice solution in any practical case (like non-zero noise). Same deal with removing film grain in low light conditions.