ColorRight is a tool for properly setting custom white balance on your DSLR. It looks much like a lens filter with a dark ring and partially see-through hole inside the filter glass. Placing the ColorRight tool over the end of your DSLR and taking a sample shot gives your DSLR an accurate reading of the temperature of the light in your scene. All subsequent shots taken with your DSLR under those lighting conditions will have an accurate white balance.
I would venture to say that the vast majority of DSLR users (think about how many Canon Rebel and Nikon D40ish cameras have been sold) don’t know what white balance is or why they should be concerned about it. White balance generally refers to the color temperature of a photo.
