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I recieved an email from the supplier of where I got the focal reducer and my 14" LX200 some years ago.
They informed me that the optimum distance is meant to be 45mm and not 105mm. So I will try that now.
Perhaps there are different configeration f6.3 focal reducer/flatteners for SCT scopes that require different spacings. eg. could Celestron be different to Meade? The Celestron 14 is f11 and the Meade 14 is f10.
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