Dave, UF can produce any size image you want. Some have run 900+ hour renders. The problem (or situation) is, IMO, that most making fractal images never print their images, or if they do, they print them at 8x10. Getting a 4'x4' print is very expensive, especially if framed. Most making images aren't willing or able to go through that expense, not to mention the issue of having a place to hang it. Ken...