I would not see the RASA8 as a downgrade. It's possibly the best deal for F2 imaging on the market. The FOV would be better than the EdgeHD/hyperstar 9.25. You can see the difference in FOV for yourself on astronomy.tools on the web. Just enter your EDGEHD9.25/Hyperstar specs and the RASA8 and see exactly the strengths of both on a variety of targets. Cool site! You would loose the ability to take off the hyperstar if you want to do visual. However, the hyperstar setup you are running makes for a heavier (top heavy) rig if all you want to do is F2 imaging. The RASA wins on sheer convenience and you can even do twin RASA8s like Steven Morris:
There's a great facebook group dedicated to RASA imaging:
I'd love to see a RASA8 discussion start right here.
Check my Signature... I lost my RASA 11. I also own a 9.25 (no hyperstar yet)... I'm going with a RASA8... if not TWO!
Edited by string, 26 November 2020 - 02:51 AM.