2011 PSU Forensic Sciences Session - One of the great things about the digital age is how easy it is, now, to tweak an image so that it can be tailored to the exact needs of the client.
The "true" image in this set is the second one, with the light blue lighting. The first image has the blue light totally removed, to give a very clear and clean look to the image. The last two have the blue channel of light tweaked a bit to give some different looks to the color, which I used purple and teal for this example.
But being able to tweak something like that, in a very quick and easy fashion allows the clients I work with to match the look of their materials without having to physically take 3-4 more images under different gels or lighting "looks."