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Any advantage to a field flattener for an ED120?
G'day ladies and gents.
I'm just wondering if there is any way to enhance my Skywatcher Black-Diamond ED 120mm refractor.
At the moment I am just using prime focus with an Orion Starshoot Pro DSI.
Any suggestions to enhancing the optical train of this combination? Field-flattener? Can you get Barlow's in the 2inch?
Baz.
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