Yesterday, I posted a short video I took of the ISS passing over Ottawa this past Tuesday evening, so I thought I’d post a copy of long exposure photos that I took.

I used my digital Canon Rebel on a tripod that I sat on the roof of my SUV. Generally, I had the ISO set to 1600, stopped the lens down to about f/20 and manually selected a 30 second exposure. The autofocus was turned off and I manually set the focus to ~infinity and confirmed it the stars were in focus with some test shots. I have a small wireless remote that I used to trigger the shutter. To avoid condensation problems, I set things up about half an hour before the pass to allow the camera to cool down.

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