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Old 15-06-2015, 06:44 PM
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Paul Haese
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Join Date: Jan 2009
Location: Adelaide
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Quote:
Originally Posted by multiweb View Post
I reckon your black point may be too high. There is a lot nebulosity in the area and it's not that faint. Do you need that much integration time? Stars on clusters tend to saturate quickly. The FSQ is a very fast scope.
Thanks for your comments Marc. Black point looks fine to me. See attached. You cannot really show an image with a tiny section of the same detail and compare them mate. The dynamic range of both is like chalk and cheese.

As to integration time, I found that long and more subs suits my imaging. I won't be going back to short subs excepting for areas with very high dynamic range. I tried that years ago with the TSA and QSI combo and it resulted in very noisy images even after doing lots of integration time. I don't need to stretch very much using my current methodology. These are only 9 frames per lum at 20 minutes and a max of 5 frames in the colour at 20 minutes. That gives a smooth background without the need for any noise control.

Yes the FSQ is a fast scope but it is not a light bucket.
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