Is there any affordable equipment for the home darkroom to expose RA4 paper from a digital source. I have an Vivitar VI enlarger and a drum processor up to 11 x 14 for my conventional work. For digital printing I have an Epson inkjet, but if a Frontier machine can make good prints digitally on RA4 paper, why can't the home enthusiast. There are advantages in RA4 paper durability and the quality of the color is known. The only way I can think of, if I had to do it tomorrow, is to encase a good 19" computer monitor in a light tight box, essentially mating it with a large enlarger (graphic art process size of enlarger) and use it to expose onto RA4. It could be in a horizontal or vertical configuration. I am aware that the lens could be a problem due to lack of color correction on some LF graphic art enlarger lenses since that are usually used with blue sensitive materials only. The settings for the monitor would have to mimic a good color negative, and the lack of brightness would result in long exposures. Does RA4 have reciprocity problems? - I should experiment with that with my Vivitar. As far as the size of the print - they would have to be reduction due to the phospher pitch on the monitor being so coarse, 5x7 should be good and 8x10 acdeptable. So the enlarger would be used a reducer. OR is there already a laser exposing device available? I haven?t seen inside a Frontier machine, but I expect it would expose the paper to RGB laser light in a scan as the paper moves (sort of the reverse of a flatbed scanner). Or I can picture the reverse of a drum scanner. Sort of a drum exposure machine.