These are my basic settings for single exposure startrails under dark skies, worked out through trial and error. They give a well-exposed image with information spread across the histogram... When shooting these its important to check the histogram as the darkness often makes screen results often look much brighter than they really are!
600s 10 min // ISO 2400 // f4.0
1200s 20 min // ISO 1200 // f4.0
2400s 40 min // ISO 640 // f4.0
If you are lucky enough to have a faster wide-angle - say f2.8 - you can just half the ISO's above. EG, for a 40 minute exposure you can use ISO 320 @ f2.8.
Enjoy : )
You has a blog! Sweet!
ReplyDelete