I am trying to think of things to do with my 4x5 negatives apart form just scanning them or contact printing. I really only want to enlarge up to an 8x10, which is my favorite print size. I was wondering, since this is a simple doubling of each dimension, are there any simple fixed enlarger designs (sort of like a Daylab printer for making Polaroids from slides) that will help me turn my 4x5s into 8x10s? I really don't have the space or money for another enlarger for my very few 4x5s and thought this might be a neat little idea. I don't know that much about optics and I wonder if this is even possible.