Thread: New Year Rose
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Old 01-01-2009, 05:02 PM
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Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,474
Thanks to one and all for the positive feedback.

...just need the weather to co-operate for some more data.

Quote:
Originally Posted by Hagar View Post
Can I ask what type of Ha filter and how narrow is the filter?
I'm now using a Baader 50mm set. The H-Alpha has a 7nm bandpass. Reflections seem to be well controlled and the par-focal aspect is nice for narrow band work.
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