Hi Astro,
Thanks for that. I enjoy learning new things and its always great to get
advice.
I have learnt a lot from everyone and need to choose within my new budget what to choose. Double stack lunt ls50 or push and wait for ls80 single?
Thanks,
Mel
Quote:
Originally Posted by astro744
I first got a taste of Ha viewing with a brief look through someone else's Coronado SolarMax 60. It was enough to get hooked into solar viewing and I then bought my own Coronado SolarMax 40 which is all I could afford at the time. It was one of the last of the earlier version (pre-Meade takeover) with full sized etalon and recommended to me over the PST for its narrower band pass and better focuser for both visual and photographic use.
I can see prominences and surface detail at the same time and I can enhance one over the other by tweaking the etalon and/or by focusing. The centre of the sun is slightly different focus to the edge. The band pass is 0.7 and with 40mm aperture it is a very good compromise to give both prominences and surface detail. If I were to double stack to get 0.5 band pass I would probably struggle for light with 40mm aperture but I'm not sure and it's a bit expensive for me to try and at this stage the current view is plenty pleasing with lots of detail visible. I use 25mm, 18mm & 12mm Cemax eyepieces with 18mm being my favourite but I also really enjoy the view with my 16mm Clave Plossl and 14mm Tele Vue Radian as the magnification is just about perfect.
Note as a single stack there is plenty of light with 40mm and the resolution is stunning. Buy the biggest aperture you can afford but don't be dismayed with lesser apertures as the view is quite pleasing especially for casual viewing of the Sun.
Whatever you choose, enjoy!
|