Hi Bojan,
Not an original idea one I found on a forum, the Meade and Celestron .63 Reducers/flatteners have two elements the one nearest the camera end is the flattener lens and the nearest the SCT side is the reducer so in theory if I remove the flattener/corrector and put the other lens back in its original position it should work just as a reducer for my ACF scope? Hence the need for a spacer.
There is one 4mm spacer which was originally between the two lens sets but needs about 13mm total so one spacer about 13mm might do it.
Doesn't need a lot of strength as you say the other spacer is metal though.
Cliff
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