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Old 22-02-2006, 06:55 PM
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[1ponders] (Paul)
Retired, damn no pension

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Join Date: Nov 2004
Location: Obi Obi, Qld
Posts: 18,778
Good question yagon. Haven't heard it put quite that way before. Maybe erecting prisms aren't produced to the quality of star diagonals. Maybe it's because there are more surfaces to reflect of to erect the image???
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