I guess H-alpha solar prominence viewing isn't for me. It just isn't all that exciting. Maybe my expectations are too high. I might spring for the Coronado PST because I'm more interested in surface features.
The filter system itself (see the Lumicon web site for all details) is pretty cool and in very good shape. It includes the off-access mask/cover for an 8" SCT, the 58 mm energy rejection filter, and the hydrogen alpha filter unit. The off-access mask and 58 mm ERF opening gives an F/34 focal ratio on a 2000 mm FL SCT, well within the F/20 to F/50 beam required by the Lumicon system.
This system retails for $699.95 plus shipping. I'm offering it for $450 shipped to the CONUS.
The previous owner sent me a couple of photos that he said were taken with this filter. I'd say they are not quite representative of what is seen through the eyepiece but quite representative of digital imaging.
Thanks for stopping by.