Re: First images with AP1200 GTO


Roland Christen
 

In a message dated 6/20/2007 8:00:49 PM Central Daylight Time,
peturnielsen@yahoo.com writes:


do all H-alpha filters cause halo (i'm looking to buy one and was
thinking about getting the astrodon). what h-alpha filter would you
recommend ?
I use the Baader 2" filter now. It does not cause any halos.

Rolando


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