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Old 12-01-2014, 04:51 PM
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allan gould
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allan gould is offline
Join Date: May 2005
Location: Brisbane
Posts: 4,485
Originally Posted by RickS View Post
The CF tube offers no improvement in focus stability anyway, Allan. I have one and the primary mirror cell and the spider assembly are bolted to each end of the full length metal dovetails. I think the CF tube is mostly there to look cool

I wouuld have to agree Rick. So far as I have been able to assertain the weight difference between the 12" aluminium tube and the CF tube is between 1-2 Kg. Worthwhile but not extreme.
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