Star trails using red filter with hp5
One of the things on my bucket list is to get a decent looking star trail shot.
I've been working on this for several years. Its usually a once a year (at best) chance to get out with no moon, and no city lights. Needless to say my progress has been slow, and my results less than exciting.
Here is the shot I am envisioning. At the racetrack in Death Valley. Having one of the sliding rocks coming at you, pretty much in your face, slightly side lit, with a heavy full circle of stars in the background.
I have two or three ideas about getting there at twilight, and starting the exposure and just letting it run. But thats a bit of a guessing game as to when to start. And there is the artificial light idea on the rocks.
So here is my question. Has anybody tried doing a double exposure. First the foreground and sky, with a red filter, late evening while there is still enough blue sky so that the filter would keep the sky dark, so there would be some contrast between the sky and stars. Then later after it gets dark, burn the stars in over the filtered blue sky.
Anybody think that would work.