Originally posted by pres589
Very cool. Did you use some kind of filter to further reduce light gathering?
No, ISO 80 and F6.3 were low enough to give me time and night was dark enough for 50 minutes. But with these settings the startrails became quite weak. If I did it once more I would use intervall shooting at ISO 800 and 20 seconds exposure time or so and combine the images with Photoshop or pretty easy with StarStax. In an image series there is also more security if you make mistakes while lightpainting or if external lights get into the scenery while exposing (cars, people with torches, night wanderers etc).