Thread: Which extension tube?
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Old 11-07-2006, 04:27 PM
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Robert_T
aiming for 2nd Halley's

Robert_T is offline 		 
Join Date: Oct 2005
Location: Australia
Posts: 2,959
Matt, were you planning on using this with the 2.5xpowermate or have you got another barlow? Not sure if you're aware that adding extension to the 2.5powermate will actually reduce the image scale - a peculiarity of it's design....

cheers,
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