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Old 08-12-2018, 01:56 PM
Startrek (Martin)
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Startrek is offline
 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 5,990
Thanks Alex and Chris
Just what I wanted to hear , a good scope !
I was looking at the Skywatcher 8” f5 but I think the GSO dual speed focuser is much bettter, a nice solid focuser with smooth travel. The Skywatcher focusers feel a bit under engineered when it comes to supporting your accessories
Is coma on these F5 scopes a real issue for AP. For visual I don’t even notice
I will probably set the tube rings up with a longer bar so they have a wider support on the tube , say an extra 100 or 150 mm
People have suggested from 8” up they can be a windsock especially when guiding
I was out last night imaging M42 again with my 6” which is 900mm long and the wind was gusting around 20 to 25 km/hr however my guiding was running pretty good around 1.5 to 1.8 arc sec total error with RA Osc sitting around 0.32. So the wind didn’t affect the 6” to much and I’m hoping it wont have to much affect on the proposed 8” ??


Cheers
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