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Hi Erick
I found that little trick with the barlow lens when I had a similar problem converting a 4" 1000mm Maksutov camera lens into a telescope. I could not reach focus with a diagonal. Just could not get close enough. I removed the lens out of a Celestron Barlow and found it screwed perfectly into a Meade diagonal. This put the barlow lens deep inside the assembly where it could be most effective.
The adapor I made now accepted the diagonal and I was able to get the focus scale on the lens to the correct alignment as well.
Barry
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