Attached Link: http://artbycomputer.com

The biggest I've done so far is 24' x 4' @300dpi. That would be 86,400 x 14,400 pixels. This only exists in 3 seperate panels of 28,800 x 14,400 pixels, that is, I don't have any software that will handle that big a file. Post processing has to be handled carefully. I put Pshop into action record mode so I can do the same to the other panels. Having somewhere to display it is also a problem. That particular one took about 20 min/square foot to render. Of course I do this so I can make really big prints and have all the detail.