Quote:
Originally Posted by N1
G'day Paul, where does it say that these scopes were serrurier truss designs?
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Pretty well everywhere they are advertised. Presumably taken direct from the GSO blurb about them, to quote from one page (which I am not going to identify as I am not having a crack at the sellers here, just curious to confirm my own understanding)
Quote:
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A series of CNC-machined heaxagonal aluminium support rings form the basic structure of the optical tube. Carbon fibre tubes connect the support rings in a Serrurier truss design.
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I think posts prior have answered my question, they are not really a Serrurier design, just a truss design used as a standard tube would be getting unwieldy and heavy in scopes in the 10/12/16" range.
I asked the question given the reputation of the RC design for being really touchy about collimation being "just so" where it looks to me like these designs could mean collimation differences depending on where in the sky they are pointed. Happy to be told that in scopes this size the rigidity versus scope weight means it is not significant.