In reply to james mann:
What is frying my little brain, is knowing how to get good exposure settings for an image of the Milky Way.
What should I look for to get good exposure?
Do I use intuition or the histogram?
I'm on holiday, with one more potential night of clear sky's ahead of me. I have a wide 15mm (Full Frame equivalent lens) at f2 but what do I try to achieve because I don't want to got too far and mess things?
Do I use the 500 rule and expose for 33 seconds or be more conservative at 20 seconds?
At 20 seconds I have virtually no movement but at 30 seconds, there is obvious movement. Have I answered my question and the only variable is ISO?
Questions, questions, questions.