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Old 03-03-2018, 08:12 AM
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doppler (Rick)
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Join Date: Nov 2012
Location: Mackay
Posts: 1,690
You would have to move the primary mirror up the tube closer to the secondary to achieve focus. This would require drilling some holes in the tube, not hard to do but hard to workout the correct distance required. Newer primary cell designs require cutting the tube to shorten it. The balance point would change, this would only be an issue with a dob but not with an EQ mounted scope.

Rick
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