Pick yourself white subjects and photograph them on a white background. You will find that you will need to adjust your automatic exposure setting. As always, enjoy this exercise!
I picked three white mints and used my 180mm and shot five exposures. One normal and four under/over exposed images. I kept the f-stop at a constant f8 because I did not want to change the depths of field.
In post-production I converted the image to monocrome to eliminate any color in the image. Enjoy and keep on photographing!