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hi Dave,to buy and then motorize a large aparture dob l can understand because the eq mount required to carry the ota would be truely expensive, l'm talking 14" and over, but in the 8 to 12" range why would you want to buy a dob and then go to all the trouble of fitting tracking to a base that did not have this purpose in mind in the first place. l certainly understand that a lot of people buy dobs because of the lower cost per aparture way of getting into astronomy and when people join this forum and ask about scopes generally they are pointed in this direction but then a lot of these people see the great photos that are posted and think l would like to do that only to find that the scope they have bought does not have that ability, l am not saying that everybody that starts in astronomy should rush out and buy a 10" SCT but it should be understood that this is not a cheap hobby, in my opinion a little bit more money spent in the beginning will save money in the long run, we've all seen what second hand equipment sells for compared to new.
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