Thanks for all that interesting history and facts about the f6.3 reducer and spacing it clears up a few things.
Interesting that the Meade site now states that the ideal distance is 45mm, with a little rearranging of the various adapters I have to connect the camera I will just manage to reduce the spacing to minimum of 85mm.
I can't reach the ideal 45mm spacing so I will try the 85mm spacing next time and see if it is better than the 115mm I have been using.
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