So I want to make a copy of a painting I made with a friend. I would like to make this copy on canvas. I was thinking the cheapest way to do it would probably be to get a digital copy and get some online service to print it onto canvas. The painting is 18" x 24." My question is, what would be the best way to get a digital copy of the painting that looks as close to the original as possible? My Sony Point & Shoot isn't that good . If I take it to some sort of printer would they be able to scan it and give me the file? I was also thinking about going to a photo studio and getting a professional picture of it. Any thoughts?