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Old 12-01-2019, 04:22 PM
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Marke (Mark)
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Join Date: Nov 2009
Location: Sydney
Posts: 1,193
[QUOTE=Merlin66;1412283]Whoooo!
That didn’t take long to arrive.
Not sure why you’d want to stop down the ST80 it should be OK with the Quark. Worst case you could add a UV-IR cut.

Thanks
Came in a week from OPT was very quick.
Quark works best from around F30 ideally f35 to 40 there was a big increase in detail when I stopped down
I could see multiple little proms in the 25mm eyepiece I tried
but yes bugger all else.
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