I bought a hydrogen alpha set-up back at Christmas (http://www.solarscope.co.uk/index.html) which comprises two etalon units – a double stack. I wanted to proceed cautiously and was a little concerned about adding 2kg to the front of my scope in terms of balance. I fitted a 1kg divers weight to the back of my scope as counterweight for the single stack but wasnt sure if I would need an additional counterweight for a double stack!
In view of that I have only used a single stack until now – it was a nice clear morning today which gave me time to cautiously add on the second unit – without another counterweight.
The top photo shows an image of an active region – AR 2320.
Second, a new un-named region which exhibits a small solar flare (above a quiescent filament with a typical, scalloped lower edge).
Third, a complete solar disc in Hydrogen alpha, tinted to show filaments.
Finally, some prominences on the Eastern limb.
Prominences are described by their appearance, so I think from L to R this is a Tree, a Spray and a Surge.
Celestron 1000/102mm refractor
Solarscope DSF 70 mm filters
Skyris 273m CCD camera
Astro Hutech Hinode guider
Ioptron ZEQ25GT mount.