The summer of 1966, I hitch-hiked alone for two months all over Europe instead of working on a farm in Spain. It was a big game to see how much I could see on $400. This got me hooked on traveling.

Getting up way in advance of dawn is always a good idea. Nearly ninety-nine percent of the time when I have gotten up in the middle of the night for a shoot, something good always presents itself to offset the nagging tiredness and discomfort of losing sleep.

I like to move as much as possible and look at reflections, weird angles, subjects from airplanes and cranes. I feel sorry for the Jabba the Hut types who can't do this. Once an obese student told me that he wanted to be a war photographer. I said, "Really?" and then I shot him.

RAW is very forgiving. I was photographing a farm woman in Ecuador cooking over a small fire and my fill flash didn't go off a few times. I was about to delete the RAW files but decided to play with the curves first because I like the composition. It turned out that the image, although underexposed by two stops, was better than the fill-flashed images because the fire was the only source of illumination and it looked more real.

Scientists are usually nice, organized, logical people who are very cooperative. I always learn a lot of science while shooting science stories and it helps to be able to speak intelligently to a subject about his or her field of work, i.e., do your homework before the photography.

It's important to get a translator who will ask the questions in a sensitive and thoughtful way. Knowing the ethnicity issues, the tribal issues in some places...who your translator is can mean a lot.

I fell in love with traveling and thought being a photographer would be an interesting way to travel and make a living.