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Old 20-12-2014, 01:13 PM
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Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 6,906
Extreme narrowbank - CaK filter

http://www.ebay.com/itm/311215203166

Primarily for solar imaging I think, but would make an interesting comparison with other narrow band filters!!
Yes, it does say 2A (0.2nm) bandwidth!!!!!

Last edited by Merlin66; 20-12-2014 at 01:51 PM. Reason: typo!
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