Quote:
Originally Posted by renormalised
Nice shot, Marc. The Hyperstar will certainly get that and probably more in a much shorter exposure than what you did last night. Seems the best cameras for them are OSC's, since you don't really want to start adding filter selectors and such to the weight on the front of the scope.
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Apparently the light cone is so steep there are issues with monochrome cameras and narrowband with ghost reflections because of different focus plane per light wavelength. I read that using an OSC with microlensing acts as a secondary filter after the main filter (i.e you keep only red when doing Ha/Sii and the reflections end up in the green and blue that you discard anyway). But on a monochrome it all ends up in the same well. I'll be able to confirm this tonight as I'm shooting the Helix in Ha, if everything works that is.
Quote:
Originally Posted by dpastern
I wonder if I can see this with my 4" refractor from LP city skies (with a UHC filter)?
Dave
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Can't see why not but it's bloody faint.
Quote:
Originally Posted by tornado33
Nice sharp image there.
Scott
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Quote:
Originally Posted by TrevorW
Good One Marc
nice tracking
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Thanks guys.
Sharp alright but still lacks details. I don't know if it's shortage of data or aperture. We'll see what the C11 at F/2 does tonight. I'm excited.
