I've been taking a few shots of the Milky Way using my 16-35mm lens @ f2.8 ISO2000 and 30 secs exposure. I'm getting okay shots, but nothing great - not really sharp and lacking in colour.
Is there a filter I need to use to block out light pollution from nereby cities or do I simply need to adjust my camera settings?
How do you know when you've got the correct colour balance in post-production (i.e lightroom)? To explain further, I have several shots where the same rocks or stones are grey in one shot and brown in others. Similar comment for sunrise photos with red/orange hues.