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Old 07-01-2014, 07:45 AM
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Logieberra (Logan)
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Join Date: Mar 2010
Location: Canberra
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Quote:
Originally Posted by clive milne View Post
So can you explain to me why professional telescopes like the VLT, Keck etc don't require a carbon fibre truss for starters...?
The amateur tends to operate smaller mounts, no? The thermal properties of CF aside (a subject best left for the science types on here), if a truss tube shaves even a few KG off the end weight, great!

Below - the same 12" RC mirrors - truss vs. closed tube.
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