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Old 19-12-2011, 02:24 PM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,927
Ric,
The DSO type narrowband filters 10nm etc don't work for Solar.....
The bandwidth is far too great..
To observe the solar proms etc in Ha you need a bandwidth around 1-2 A (0.1 -0.2nm)
A continuum filter or a green filter can improve the contract when used in conjunction with a white light filter....
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