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Couple of Lulin shots, 4 March 2009
Hi guys,
We had clear skies last night in Manawatu, NZ, so took the opportunity to try some shots of the comet before the clouds rolled in again. I don't own a scope but have an AstroTrac and tried a couple of camera/lens configurations.
The image of the comet & M67 was on a Canon 5D, 135mm lens at f/2.2, 60 seconds, ISO 3200. Cropped slightly, no noise reduction.
The closer view was a Canon 30D with Tokina 300mm lens at f4, 130 secs at ISO 1600. No noise reduction.
Both had auto-contrast applied.
I'm not that skilled with the post-processing yet. I did shoot three-four frames (2 mins each) & a dark frame intending to try stacking them, but I see the comet does visibly move. I guess there might be some tricks to that. I can't track the comet with my gear so maybe I've just reached the limit there, or maybe I should use shorter exposures.
Andrew
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