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Old 15-04-2013, 09:21 PM
ausastronomer (John Bambury)
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Join Date: Mar 2005
Location: Shoalhaven Heads, NSW
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Quote:
Originally Posted by raymo View Post
I suspect the mirrors come from the
same factory.

Raymo
That is also way incorrect. In fact they don't even use the same glass types for the primary mirror substrate. The Skywatcher scopes are made by Synta and use Pyrex glass as the primary mirror substrate and the GSO scopes use BK7 glass as the primary mirror substrate. Synta is in China and GSO is in Taiwan.

Cheers,
John B
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