Thread: Extreme narrowbank - CaK filter
View Single Post
  #1  
Old 20-12-2014, 01:13 PM
Merlin66's Avatar
Merlin66 (Ken)
Registered User

Merlin66 is offline 		 
Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,904
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!
Reply With Quote