Thread: M20
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Old 06-10-2009, 01:40 PM
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Geoff45 (Geoff)
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Join Date: Jul 2006
Location: Sydney
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Quote:
Originally Posted by Paul Haese View Post
Very nice image. I am interested in the your subs duration and did you use luminance? I have a QSI too and while my telescope is a different optical design I am interested in your thoughts. I really like mine but have found the off axis guider a little bit of a challenge.

Colour is great and processing is superb.
I used 5 min subs. I would like to go longer, but I'm having tracking issues. I always use some luminance frames, usually of the same total length as the colours. I calibrate, stack and (usually) make the colour image in CCDStack, but combine the RGB and L in Photoshop. The off-axis guider with the Orion Starshoot usually picks up a star, but occasionally I have to search for one. Getting the guide camera and main camera to focus simultaneously was a bit of a fiddly business, but once done it's done for life.
Geoff
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