Quote:
Originally Posted by Atmos
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So why don't the 80-130mm refractors or even 8-12" reflectors generally come as sharp as what Peter has posted? Seeing conditions is definitely a big part of that. Mostly though, it's aperture. What aperture allows is for you to image at a higher scale while maintaining SNR and therefore contrast. Contrast by definition is how well defined brightness differences are at small and large scales."....
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Thanks for your analysis .....also as a post script...I guess it was not too shabby as the image picked up a gong at this year's CWAS/Malin awards
