Thread: 120 mm or 102 mm f/5 refractor for rich field visual?
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Old 16-02-2014, 09:03 PM
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cometcatcher (Kevin)
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cometcatcher is offline 		 
Join Date: Jan 2005
Location: Cloudy Mackay
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Just tried the field flattener visual and it works. Stars were great right across. Straight through not good on the neck though. I wonder why these aren't more common? Can't they be built into a diagonal or something?
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