Thread: Trouble with Dobsonian focusing
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Old 08-08-2013, 10:32 PM
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doppler (Rick)
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With a 10" scope you might need to find a star that is not as bright . If the secondary spikes are centered on the star image I would think that the collimation is ok.
Last edited by doppler; 08-08-2013 at 10:53 PM.
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