Thread: Rubinar 500/8 - a low cost flat field apo alternative?
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Old 24-01-2013, 12:18 PM
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rmuhlack (Richard)
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Join Date: Nov 2011
Location: Strathalbyn, SA
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true, but with a low cost alternative like this there's got to be a compromise somewhere

Mind you, there are plenty of people shooting deep-sky with f6-f8 refractors as their main imaging scopes.
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