Inspirations – Weerapong Chaipuck
D300 Sigma 10-20mm at 10mm. F3.5 ISO 800 for 30 secs plus a bit of painting in the foreground
I did multiple shots (about 20-50 shots depending on what you want – long or short trails of the stars). Then I stacked all pictures using freeware startrail.exe. The advantage of this process is that it won’t burn much of your sensor and if you are running out of batteries during the procedure you only lose only one shot compared to one long exposure shot which you will lose entirely and in addition, you get much less noise. The disadvantage of this procedure is that if it is a cloudy night, you will get not so good-looking clouds while a one-long shot obtains a better visual sense of moving clouds.
I also did a bit of blending process in PS to get heads of all the stars. ~ Weeapong Chaipuck