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H-alpha 3nm
I know the thought of parting with about $A 800 or so for a new 1.25" ultra narrow band h-alpha is a bridge too far for many.
But..... I have a pristine condition Custom Scientific, 1.25" 3nm H-alpha filter (attached pic) that can be yours for half that.
Asking $400
Be quick! ...my other NB set on IIS sold within 48 hours
Last edited by Peter Ward; 16-02-2017 at 11:00 AM.
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