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Old 02-11-2014, 12:38 PM
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doug mc
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Join Date: Feb 2007
Location: Mt Tamborine
Posts: 619
Just like the previous poster said with his 18inch dob, you can make an off axis mask to place on or in the front of your scope. You should get close to 80mm with your reflector. Star diffraction paterns will be easier to see and there is a lot of doubles to be seen with that aperture.
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