I had been using the default 350 dpi, but the resulting files are too small to sell to most stock photography sites online. For a standard print at 300dpi, they are great. A bit low for my metal art, which usually prints at 600 dpi, and the industrial provider I use for canvas prints requests 1600 dpi (no typo). My question is since I can change this setting in the camera itself, so that I don't have to stitch a panorama for every shot I want to list on a stock site, what should I change this to to get the most out of my camera? It's supposed to be capable of standard shots of over 17megapixels, but I can't figure out how to do that.