I "went over to the dark side" and bought a digital camera in 2005. I would like to put my 4x5 camera back in service for landscape photography. Of course, film is still an option, but it is getting expensive. I would also need a better film scanner to do the film justice. I've scanned 4x5 film on my Kodak 3570 scanner (4 scans to cover the image). This provides about 900 pixels per inch on film that can deliver 3000 to 4000 ppi. A Better Light scan back would be a nice option, but they start at $5000 for a used unit. They make film and processing prices look reasonable. I've seen sliding backs that allow you to attach a medium format or full frame digital camera and take several exposures to cover part of the image plane. It looks like the largest image you can capture with a full-frame DSLR is about 3x3 (camera in vertical position taking two rows of three images). Is there any reason why a sliding back can't be designed to allow four rows of three horizontal images? This would cover more than 75% of the 4x5 image plane. Is such a device available? Are there better options for large format digital images?