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Old 25-05-2005, 06:12 AM
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iceman (Mike)
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Join Date: Sep 2004
Location: Gosford, NSW, Australia
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Thumbs up HowTo: Checking the Optics on your GSO Dob

Hey guys.

After all the discussion of GSO Dobs and their optics lately, in particular the astigmatism caused by pinched optics, Geoff (starkler) has kindly written a how-to guide for checking and correcting those problems.

With all the GSO Dob owners on this forum (most as a direct result of advice given here), I strongly urge all of you to follow the directions given here to check your optics. There's been several owners who have done the fix and have much better views as a result.

You need to know how to collimate, and you'll have to do some DIY things like taking out your primary and secondary mirror. If this is pretty scary for you, I suggest you find another forum member who lives near you to help you with the process so that you gain confidence to do it yourself next time you need to.

Anyway, you can find the article in the IceInSpace How-To section, or by clicking on this link:

Checking the Optics on your GSO Dob

Thanks to Geoff for submitting the guide, and please if you want to try this and are having trouble with courage, please post and we'll help you through it!
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