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Old 29-07-2011, 01:53 PM
swannies1983 (Dan)
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First attempt at Omega

After imaging with a webcam, I have decided to take the plunge into prime focus astrophotography. I purchased a Canon 400D in about 2006 with the idea to undertake prime focus imaging but didn't think seriously about it until recently. In fact, up until the recent lunar eclipse, I hadn't taken my telescope outside for well over a year. I guess having a baby limits the amount of time you have.

My current setup is an EQ6 with Astromeccanica motors. The scope I am currently using for imaging is my 8" Newt. I thought I wasn't going to be able to achive focus without cutting up my tube and moving the mirror, but I learnt that the 1.25" eyepiece barrel unscrews from the 2" adapter, which has a thread for the t-mount.

I spent a few nights, with many frustrating moments, learning how to drift align. Last night I thought I would quickly try imaging Omega Centauri. I didn't use any focusing software. I just took a shot and adjusted focus until I thought it was good enough. Obviously, this was quite hard as I was looking through the viewfinder. I only had time to take 3 shots (ISO 800, 45sec exposures, unguided) as high cloud was rolling in. Attached is a stacked image from DSS. I'm fairly happy with my first result. Obviously, I will need to get better focus, make sure polar alignment is accurate, take more subs (darks, lights etc but they can wait for a bit) and also learn what settings to use in DSS and processing techniques. But I think it's not bad image for a quick and dirty trial.
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Old 29-07-2011, 01:59 PM
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jenchris (Jennifer)
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the stars are nice and round and the background is nice and flat - don't worry - it's a good image - just needs lots more light!
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Old 29-07-2011, 02:05 PM
swannies1983 (Dan)
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Thanks Jen. Just need those damn clouds to blow away.
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Old 30-07-2011, 12:33 PM
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Stu Ward
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Thats a really nice start Swannie, certainly a lot better than my first attempt at OC.

I reckon that with the right skies, allowing you to take many more subs you will end up with great results.
Keep it up, based on what you have done with little over 2 mins of exposure, i'm sure you will produce some great images with the right amount of data

Stu
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