Quote:
Originally Posted by xelasnave
I have been looking at Opted but, although it only now hit me so I need to check, I am sure they mentioned that computer controls were via lynex?
But what a beautiful looking unit and just on appearance and bulk I like it.
I have been looking at the solid tube unit which oddly is far more appealing to me as I don't like the shroud approach but mainly I like to instal a short baffled dew tube to restrict as much star nearby star light as possible, ( they do it on Hubble in effect and I have convinced myself that at my dark site bright stars are like street lights to city astronomers.) Anyways shielding the carbon fiber unit would be a big deal for me.
Flex may be an issue as I expect the tube will be tin can stuff with a seam that will open..if anything like my 8 inch Newtonian..with it and if I ever get around to it I planed to add something, a strip of aluminium, or fiber glass it..something ..but with the RC I have not idea ...anyways I am sure I can overcome flex..mmm cover the tube in carbon fiber and layer in carbon fiber poles in a pipe like configuration to pump coolant and main temperature equilibrium...but the solid tube is much cheaper so if I don't find I can set it up, manage the focal length whatever my losses should be less...the trouble is you gotta buy and try...
Thank you for your reassuring words I really do appreciate you sharing your experience.
Alex
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Alex, The metal tube version of the GSO RC12 will be subject to tube expansion affects due to thermal changes, which affect focus etc. There is no carbon fibre tube version available in Australia. You can buy the carbon tube based version from Teleskop-Services in Germany,
https://www.teleskop-express.de/shop...rbon-tube.html
If you have to have the carbon tube version it might be worth asking Luke at Andrews if they can import one for you. The cost of importing one from TS, given shipping, and GST, maybe more expensive than just opting for the locally available truss version.
I note that the AUD exchange rate has improved lately, over 70 cents US, which might help getting one from Andrews. Worth asking in my opinion.
A much lower cost option might be to just buy the bare 12" pre drilled carbon tube from TS, at around 570 euro, and move the metal tube components across to the carbon tube. In this scenario you would buy the GSO RC 12 metal model from Andrews to get all the mirrors, carriers, spider, etc, and just install those items directly into the TS tube.
https://www.teleskop-express.de/shop...rotech-12.html
Just an idea, which i had considered for a large GSO Newt conversion.