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Old 25-12-2007, 09:52 PM
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Tannehill is offline
Join Date: Mar 2007
Location: Tucson, before that Wisconsin, before that Melbourne, etc etc.
Posts: 231


Thank you for the critical read. However, I meant to describe here the ability - if one wanted to and it isn't really critical I'll admit - perform "full offset" by moving the secondary mirror a bit "away" from the focuser. THis is in addition to moving it toward the primary, which by itself is "partial offset" and is more or less automatically accomplished when you center the secondary mirror under the focuser using a sight-tube. For those that are obsessive about it, there is enough thread in the spider vane mounting bolts to accomodate this full offset option. I did not because I could not fathom any meaningful impact for me, a visual observer, using an Argo to find things....

But upon re-reading it I could have been clearer, I admit.

Thank you for giving me the opportunity to make the clarification.


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