Accidental Light Painting

I finally got the film developed from my star trails shoot in RMNP a few months ago. For the shot on the right, I noticed that the tail lights on my car were illuminating the tree. So I figured I'd try a couple light painting shots. I've always preferred using the moon as the only light source but after this I may have to "cheat" a little more often .

I didn't adjust the colors much on either one. It seems that the sky is renderered more purple or even pink when I do longer star trails on film.

That's a happy little accident, nice work. What film did you use and how long were the exposures?

i really like the first image, good work!

Grant nice shots - both of 'em. That color shift is probably due to reciprocity failure.
http://photo.net/bboard/q-and-a-fetch-msg?msg_id=0032cs
John

Those are very cool! They're both so unique that you can like 'em both and not have/need to chose a favorite. Have you tried any star trails with the 5D? I'd be curious how the battery holds up, and if the noise becomes overwhelming.

Thanks for the comments! I used Provia 100F for these shots. Sometimes it can make things a bit too blue when shooting during the day, but I like the added blue for the night shots. I've stopped timing the shots, but the left one was about 2.5 hours and the right one was about ten minutes. I have tried some night shots with the 5D. I usually do shorter exposures with that while doing a long exposure with film. I like it most for trying 15-30 second exposures and getting points of light rather than star trails. But I have done a 20 minute exposure at ISO 100. The noise is always pretty apparent on all the shots, even with noise reduction turned on and the biggest I'd print is 8x10. For 2-3 hour exposures I'd imagine the noise would pretty much ruin the image.

Very cool on both accounts! Is that the moon trail just to the right of the tree on the longer exposure?

No, that's not the moon. I'm guessing it was Venus. The moon would have been much bigger and rendered the nearby stars much less visible. I did try a moon trail once, but I overexposed it. I may try again sometime at around F22.