Quote:
Originally Posted by bobbyf
Hi Steve. Nice shots, much better than mine from this morning. I saw about 30-40 just North of Truro from 4 to 5.45 this morning, but the camera didnt pick most of them up. I thought that taking 30sec shots would increase my chances, but i guess it just lowered the sensitivity by having the ISO lower. What settings do you use and where did you shoot from in Adelaide?
Cheers
Bob
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Hi Bobby. I bet your skies would have been nice and dark out there and the Moon rising would have been a great sight. I got lucky with some of the bright ones albeit on the edges on the frames.
With my Canon 500D camera, i usually use the setting on "M", iso 1600 or 3200 but 3200 usually really brings on the noise in my camera, f-3.5 (or as low as the lens can go) manually focus using live view on a bright star. If no live view, focus on a distant street light. 30 secs is the max i like to go before excessive trailing starts. Lately i like to go 25 secs just to try and keep the stars better. Most lenses benefit from an aperture stop down or two to sharpen up the stars. That'w why i want a faster wide angle lens to be able to stop down a few and still be fast for night time astro. I usually use my EF-S 18-55mm @18mm @ f3.5 for my widefield stuff. It suffers from a bit of CA and coma around the edges but keeps me happy until i get a better lens. I have a nifty fifty lens and that does a great job being that bit faster, but it's seen a hard life and due for a replacement

I hope this info helps. You can adjust the CA in post processing and crop the edges if you like to rid the coma. I am starting to find the noise level in the 500D a bit unbearable, but am putting up with it for now

Cheers.
Steve