Thread: Skywatcher 10" Dobsonian ---> Astrograph
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Old 09-04-2010, 06:26 PM
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mill (Martin)
sword collector

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Join Date: Oct 2006
Location: Mount Evelyn
Posts: 2,925
Brendan why don't you just silastic the mirror in ?
I did that with my 10" dob and it held collimation very well.
The blobs of silastic only have to be 1mm thick and will keep the beast collimated very well without astigmatism.
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