Quote:
Originally Posted by Atmos
The biggest Goto Dob that you can afford 
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Depends on the manufacturer, the biggest i can is 18", but i saw one Dob of 20" from one manufacturer and the price is almost cheaper than C14, but it doesn't have any GoTo and it is very heavy for any EQ mount even high end which is super astronomy expensive, so logically 14"-16" is more affordable or 18" if it has Goto.