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Originally posted by Hellhound604
reply to post by Phage
Telescopes with narrowband Ha filters, and Ca filters are affordable for the average amateur nowadays. Up to a couple of years ago, they were way to expensive for the average amateur, but with the new telescopes from Coronado, Lundt, etc, it came into reach of the average amateur astronomer. A 60mm Ha telescope costs about the same as an 8" scmidt-cassegrain telescope.
As for a coronagraph, well, I guess one can do it, but I am not sure how much internal reflections in the telescope would affect the blocking element, and I guess the tracking will have to be more accurate than what I can do right now.
edit on 13/2/2013 by Hellhound604 because: (no reason given)