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Old 19-10-2006, 10:14 AM
casstony
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Join Date: Feb 2006
Location: Warragul, Vic
Posts: 4,494
Dobsonian design questions

I've probably been thinking a little harder than I should about this but I'm curious whether these design changes could work on a Lightbridge, particularly the 12" lightbridge.

Could you use 4 inch shorter truss tubes to allow lower power use of a binoviewer? Would this require a larger secondary mirror?

If the above is achievable the scope would be 4" shorter for seated viewing and a focuser extension tube (or different focuser) could be used for mono mode.
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