Use a Black Background Seamless paper usually works the best for this but you can use many different things - from a black sheet to a piece of construction paper. As long as you have enough to completely obscure the background behind your artwork, you can make it work. Use Fuji Velvia The first thing you need to decide is what film would work best. Although this is often an issue fraught with personal preference, Fuji Velvia comes highly recommended. Since it was introduced by Fuji it has consistently gained popularity among photographers and editors alike. Viewers lean toward slides shot with Velvia because the colors pop out. Bright Overcast Light is Best If the weather cooperates, shoot outdoors on a bright overcast day. If that is not possible, direct light is second best. The only problem with direct light is that it can create glare and cause weird fluctuations in the amount of light reflection from your work. Open shade is the worst because it often casts a blue tone over your work. If nothing else is working, see if you can rent or borrow time in a studio and make the most of the professional lighting equipment. Remove the Frame If possible, take the Artwork out of the frame to keep all attention on your work of art. The last thing you want to do is give an editor or judge an excuse to eliminate your Artwork from the competition simply because he or she doesn't like the frame. As this is often a matter of personal preference, your own interior decorating needs, and fashion, leave framework out of the picture. Beware of Parallax and Skewed Lines With slides, what you shoot is what you submit. There is a digital process where you can scan in a slide, correct any problems, and then have a lab make another slide out of the new file. But who has time or dollars for that? Just strive to shoot straight into your Artwork. You may find it especially helpful to place your Artwork flat on the ground and shoot from above. If you have a tripod that lets you shoot directly from above, use it. Make many exposures to select from; do not worry about wasting film. Unlike in the movies you don’t – and shouldn’t - only get one take. If you keep these five simple points in mind, you will be much more likely to get great slides of your artwork - slides that will win you placement in a gallery, show, or magazine.
Overcoming the psychological resistance we have against cutting off a perfectly good edge in a photo is tough; getting it right is even harder.
Demo coloured lighting setups here – different lights on white sheets
To get a Curves function, you need the full version of Adobe Photoshop.