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Marc/Glen,
Thanks for you response. I heard that the truss primary mirrors were better mounted which tended to minimize collimation problems. I have no idea , whether this relates to previous truss versions , steel tube versions or is just a lot of hot air.
This scope will be my first foray into RC's and I want it to be portable as I will be taking it to dark sky sites. I am tending towards the steel tube version because of the dew , dust and stray light problems I am anticipating with the truss version. Basically I was looking for confirmation of my anticipated concerns from IIS members.
I did a bit of horse trading and have until Monday to make up my mind.
Thanks for the responses.
Rob
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