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Old 08-04-2020, 10:21 AM
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barx1963 (Malcolm)
Bright the hawk's flight

barx1963 is offline
 
Join Date: Nov 2008
Location: Mt Duneed Vic
Posts: 3,982
On another point, you mention you are using a barlow adaptor, I assume it is one of these https://www.collimator.com/accessori...wed-attachment . If so this should actually spread the beam out so you don't get a tight dot on the primary to adjust your secondary. Are you sure it is not the 1mm Aperture stop that you are using?
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