First, let’s see what I used: a white textile (canvas or so) and not a paper. Why? Because I want the result to be realistic and not plane. Also, it’s important that the background surface should not be glossy. Natural light plus a tungsten light (two of them would be even better) and fill flash. Because the flash might overexpose some ares of the photo (usually the central area), I use a diffuser made from a very transparen’t soft plastic or canvas piece. Usually this kind of thing refers to macro shots, so you may want to shoot in macro mode or manual.
Now let’s see the tips: 1. Use a textile background that makes a few soft “natural waves” 2. Use one little colored piece in your white composition as a reference 3. Use lights from all sides to avoid big dark shadows 4. Use fill flash (better with diffuser on it) to naturally brighten up the scene and reveal the details 5. Use custom white balance to ensure real white 6. Only use matrix light metering 7. Do not overexpose the picture in the attempt of getting pure white 8. Use manual focus if the auto does not find the desired focus point 9. Do not completely remove the shadows – let the shapes be visible 10. Use a software to remove dark corners that may form
Sometimes, even if I use custom white balance, I still need to cool the picture a bit later. The whole task of photographing white objects on white background can be very difficult and require allot of practice. On the other hand, shooting in RAW format may let you change the exposure even after the shot was taken.