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Old 03-11-2016, 11:27 AM
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Merlin66 (Ken)
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Merlin66 is offline
 
Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,927
Baader 1.25" 35nm Ha CCD filter

I bought two of these for trials as replacement ITF filters in Ha solar telescopes. It worked very well.
(I also trialled the Maier ITF and the BelOptik UV/KG3)

This filter (#2458381) optically polished, hard coated, is unused, still sealed in the original packaging.
Asking $100 delivered.

Last edited by Merlin66; 08-11-2016 at 09:39 AM.