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Old 11-02-2006, 03:38 PM
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rogerg (Roger)
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Join Date: Feb 2006
Location: Perth, Western Australia
Posts: 4,563
Paul,

I will hopefully have a 350D by the end of March and one thing I am really keen to test out is exactly how they compare in light capturing capabilities to the SBIG. I'm sure the NABG ST7 must capture a lot more light than the 350D will, but then I look at the spectacular colour images people get from the DSLR's and wonder if they are actually quite comparable. It's interesting to hear your comment.

Cookbook CCD - been a while since I've heard that name. I started out in astronomy when they were around, late 90's. I never had the chance to buy one before webcams became popular and I got one of them instead.

I suppose the thing with the DSLR's is they produce pretty images for low cost, as compared to 'deep' images the SBIG style cameras produce. And I guess for a good looking image it doesn't matter what the limiting magnitude is as long as there's some nice detail and colour visible.

Roger.


Quote:
Originally Posted by PhotonCollector
Hi Rogerg,

Gee I like your images. Magnitude 20 objects eh? it reminds me of the days when I was using my homemade CCD imager (the Cookbook CCD) and getting Magnitude 19 galaxies with just a few minutes exposure on a 8-inch telescope.

It makes me wonder if I have gone backward with a Digital SLR - now I have a 12-inch telescope and even with 50minute exposures I can only just reach those faint Mag. 19+ objects.

regards
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