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Message: <blockquote data-quote="BobinKy" data-source="post: 1580234" data-attributes="member: 58027">Matt...Now I will get serious. I think you raise a good point--where exactly the light falls in the light sprectrum. In my skies, merely a 5.1 naked eye limiting magnitude, and not near what you have in southern California, I definitely need filters to see nebulae in the night sky, specifically an Ultra High Contrast narrowband filter for emission or diffusion nebulae and an Oxygen-III line filter for planetary nebulae and supernova remnants. Back on earth, during low light terrestrial views, do our eyes see certain light waves (i.e., colors not brightness or intensity) better under low light than others? Are the rods in the eyes of certain people (or is it the cones that see color) more inclined toward certain colors? Are there degrees of color blindness among all of us? Does magnification help make up for inequities of color seeing?Hey, Surveyor, if you are out there, now is the time to come back into this thread and give us the results of some of your light tests?...BobKentucky</blockquote>