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Pinched optics?
Hi All,
Recently cleaned by 10" Dobsonian mirror and took the scope out for the first time tonight.
Quick question, collimation is not perfect but is this pinched optics or just the clips visible when completely out of focus? For the life of me I cant remember if i could always see the clips or not.
Photos attached. in focus still looking pretty good when imaging a star.
On a side note, cleaning went pretty well.. i think.. some streaking on the mirror despite being rinsed with demineralized water, but i''ve heard that's not an issue.
pretty terrible seeing here in Sydney tonight but iI pointed the scope to a low Saturn and it was the worst that i've ever seen. Hope its the seeing and not the optics.
Cheers
Greg
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