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Eric Hahl Eric Hahl is online now
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Join Date: Mar 2005
Location: Aumsville OR
Posts: 3,654
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One more thing to note. The scopes we are talking about are inexpensive starter scopes. The refractor will be an Achromat and has a focal ration of f6.5...it will not be able to focus all of the color down to a single point. What this means is on the brightest stars you will see some color fringing. This will also show on the edge of the Moon, craters and planets. It can't be focused out. The view is still nice but not quite perfect.

The reflector will not have this type of aberration as is uses mirrors, not lenses.
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Eric Hahl
85 911 to 73RS backdate, a.k.a. "Gretchen" (SOLD)
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Old 01-22-2020, 10:22 AM
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