I had a great flyover of the ISS back in March of 2009, the ISS was passing near Orion. I wanted to get some shots of it. It wasn't my first ISS flyover so I knew what to expect with regards to brightness and speed. But still, I guess at the exposure.
The camera was a Canon 40D, (crop body) and I was still shooting jpg at the time. The EXIF says 28mm so I guess I believe that, I know it was a kit lens. ISO 1000, f3.5. I used a Canon TC-80N3 timer, set for a series of 5 second exposures with 1 second off between shots. I knew this would give streaks for the ISS but I also wanted better stars. (The 1 second off was an error on my part, but it worked out well.)
The gear was tripod mounted, but not on a tracking tripod. I hoped the wide field and short exposures would minimize star trails.
I used manual focus, going to 10x on live view and focusing on a bright star in Orion.
Each individual shot was as expected, slightly disappointing.
You can see the bright trail of the ISS but the stars are dim, certainly dimmer than they were to the naked eye. (At the time I lived in a very dark area.)
But when I stacked the 14 exposures I was able to combine the light fromall the dim stars and make this exposure.
Here you can see the star field like my eye saw it, plus you can see how the ISS appears to accelerate as it gets higher. (Of course it doesn't, it just appears to.)
You can also see the red glow to the Orion nebula, showing the advantage of removing the IR filter for astrophotograhpy even for wide field shots. Of course, this is much more visible when shooting through a telescope!