My daughter Abigail and I recently took a trip to Peru. Along my Canon 6D, I took my modified Canon T1i so that I could take UV and IR pictures. For our flight over the Nasca Lines I built a bracket to hold the cameras side-by-side, and rigged them to fire simultaneously when one of the shutter releases was depressed.
We flew on board a Cessna Grand Caravan, and the movements over the lines are quite brisk, so I wasn’t able to focus and tweak exposure. As such, I simply set focus to infinity, exposure to something that seemed reasonable, and hoped for the best. Below are my results. The only thing that I was not satisfied about is that I was not able to get good pictures from simultaneous shots. By the way, no aliens were spotted anywhere 😉
More of my Nasca Lines pictures at: https://flic.kr/s/aHskrdsxCu