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Old 05-09-2020, 09:29 PM
morls (Stephen)
Space is the place...

morls is offline
Join Date: Sep 2009
Location: Melbourne
Posts: 686
Sounds like a good setup Ray. I'm currently trying to get some spec's on prism size, as I think a larger prism is better suited for this focal length. I'm leaning towards the Orion "Thin Off Axis Guider", but the helical focuser on the Celestron sounds good. ZWO also have a standalone helical focuser, but whether that would be compatible with the Orion is still something I need to check out.
My setup is/will be: Baader focuser - OAG - ZWO EFW - ASI290MM. I need to do some measuring or find some specs for the distance from prism to 290MM sensor, then I can decide whether I need a helical focuser for the guide camera. I think budget will limit me to the ASI120MM-mini.

Last edited by morls; 05-09-2020 at 09:39 PM.
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