As with sound, images are subjective. You and I may not see the same color red as red, but we will probably agree that the image on the screen is a digital image or film image, based on contrast, bit depth, and refresh rate.

Once the image was in the digital environment, one of the problems was, we had no means to reproduce the color spectrum, grey scale, and contrast that film produces, without converting the digital file to film, evaluating it, then going back and changing the digital image.

It's very much like filmmaking always is-you're always asked to do something that you're not sure you know how to do. So you make an educated guess as to what you think will work and you hope between that and plan B, that you can end up with a product that's really good.

Human beings are really attuned to their senses. When you work in film, you are working with the visual and audio senses. An understanding of tactile and other components that go into the creation of those objects are important to making them look real on screen, like a plasma of energy.

I was involved in the color correction and the digital color correction. In an odd way, you end up making a film many times-the DVD, the archival record of a high-definition master, and so on.

I come from an era when we had to figure out how to bolt a camera to a motorcycle or an airplane or dig a hole and find a canyon deep enough to repel into it so that we can capture images that were real.

George Lucas wanted this moving camera for all of the photography in Star Wars. He was willing to take a risk with the concepts that I advanced with regard to ways for doing that.