Thread: Review: Orion Sky View Pro 100mm ED EQ Telescope
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Old 16-03-2006, 10:58 AM
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ving (David)
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Join Date: Nov 2004
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i know

it's all got to do with seeing and air-pocket size steve... airpockets are on average 150mm. the 100mm scope fits withing an airpocket and a 200mm doesnt, hence the seeing needing to be good...

(read this somewhere...)
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