Hi Nathan ,
For the Star trails f/3.3 , ISO 2500 , 30sec for each of the 100 RAW images , blended in PS6 in Lighten mode.
For the the Foreground f/9 , ISO 2500 , 450 sec.
I Left the camera there for one and a half hour , but then I realized that the limit for continuous shooting (for my D800) is 100 frames. I didn't know that , so the trails came shorter that I intended to.
Now that I am aware of this Limitations , I will get around it next time for longer trails.
Quote: Excellent composition, not only have you captured the event, it looks as if the colours connect. I also think your camera is showing its stuff with a 35mm lens. How did you manage to steady it? Congratulations,
Thank you for commenting Paul , the lens is Nikon 16-35 VR , which , at the 16mm can be handheld at ridiculously low speeds of half to one second , while at 35mm 1/4 secs is easily achievable !