I did promise to report back on the first attempt at a dusk ’till dawn time lapse. Everything went ok except for two minor hiccups. The first, least serious, was that the cable from the battery wasn’t long enough to get me into exactly the right spot. Easily solved; buy a longer cable.
The second was a little more difficult to diagnose. Around 2:00 am the camera started failing to trigger, resuming normal operations around 3:00 am. This resulted in about 160 dropped frames in the middle of the sequence. I can only assume that the camera power connection was faulty. I will make all the connections more robust in time for the next attempt .
In the meantime the result can be seen here:- http://www.stevelewis.photography/fb-current.html
Don’t forget to turn up the sound!