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David,
Images attached.
The 2" filter spacer tubes hold the Baader CCD-B well in front of the stack; inside the tube, in front of the gold SkyBender is a 390nm cut filter (acts as a secondary ERF) then about 30mm spacer to a 80nm bandwith 394nm CWL filter as a pre-filter then finally the 2A bandwidth, 393.7nm CWL mounted in the SkyBender.....
I'm impressed!!! It actually works!!!
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