Following fireflies

The other night when I went to Mt St Benedict to shoot star trails, my two friends and I were saying that when next there's a power outage it would be a great time for me to experiment. There would be less light pollution.

Last night electricity went off for quite a while and even though there was light cloud cover, the stars were more visible than usual. But because my cable release isn't working, I was unable to take full advantage of the opportunity.

Earlier in the evening I experimented once more with the fireflies in the field next door. Instead of leaving the camera on the tripod and depending on the fireflies to move in front of the lens, I followed them with the camera (20 second exposure). The above image is what I got.

Interesting that the resulting streaks are multi-coloured, when all fireflies are green.