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#21
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"Odysseus" wrote in message
... Paul Lawler wrote: "Listen" wrote in message ... My preference is spend the money on light gathering, I live in the countryside so only need to get it out the patio doors at night (onto the purpose built patio with painted compass points!). So weight/bulk is not an issue, also apart from a motor to keep track whilst viewing I like the challenge of tracking objects down - but that could be because I have never used a more sophisticated system. Sounds like you're a perfect candidate for a large Dob. For that kind of money, you can easily buy yourself around 15" of mirror. The "motor" part is tricky with a Dob, though; at least a budgetary allowance would have to be made for a computerized alt-az drive system. For long-exposure photography a field derotator will also be required. OTOH when using digital video I believe the processing software can realign drifting or rotating frames as it stacks them. Actually, if he/she want's to go down to a 12.5" mirror, he can add an equatorial platform, which will allow him/her to do photography. |
#22
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Just thinking:
Celestron C9.25-S Newise 200mm f/6 Modified Newtonian Orion DX300 - f/4 or f/5.3 David |
#23
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Just thinking:
Celestron C9.25-S Newise 200mm f/6 Modified Newtonian Orion DX300 - f/4 or f/5.3 David |
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