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Dobsonian Adjustable Tension Knobs
Hey guys,
Great info so far and have found this site to be a great resource for buying my first scope (since the folks did about 15 years ago anyway). I'm starting to narrow it down and its probably going to be 8" or 10" Dob.
Anyway, my question is in regard to the tension control. Is it really necessary for the scope to have this control? Some models have them and some don't, it seems. I can see their benefit in theory, but in practise, just how much benefit does it provide for the added price?
This issue came up when looking at GSO scopes on the Andrews website and they have different builds of the same scope, ranging from limited to adjustable super deluxe.
Cheers
Craig
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