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Old 17-12-2018, 04:09 PM
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that_guy (Tony)
Local Korean Millennial

that_guy is offline
Join Date: Dec 2009
Location: Gold Coast
Posts: 1,986
The flattener i use is the dedicated flattener that screws on to the focuser. It seems to be the same model as the ed80 with a different thread adapter. It has an imaging circle greater than full frame so vignetting is minimal to none existant (depending on spacing)
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