Hi all. New girl here with a question! I need to shoot some macro photos of various craft objects - buttons, ribbons, beads etc. I put them onto a white piece of paper as a background. All this is so that I can take them into Photoshop to cut out from the background and use for digital art pieces. My question is, with my Canon Powershot, how can i ensure that my background paper stays white? Even in daylight, I get shadowy greyish or blue tones. Is there a camera setting or something I can do with (cheap lights_ to get a better result?