Well I've just had a slight aha moment resulting in the ability to focus on a group of stars. I don't want to admit this but I will - it seems turning off the surrounding deck lights makes a big difference!
BTW, is this a downside of having a truss type dobsonian in that light can enter from the open sides?
Last edited by Elecmuso; 24-04-2019 at 09:17 PM.
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