Just bought a new HyperStar V4 for my C8 (non HD). I plan to use it for EAA with ASI294MC Pro camera.
I’m researching filters.
My desire is to purchase one filter that gets mounted in the HS (I did not buy the filter slider) and stays there at all times.
Most of the time I’ll be observing from light-polluted skies, Bortle 6 or so. I primarily enjoy observing galaxies and other broad spectrum objects, with emission nebulae being a close second.
The filters I frequently see pop up as recommended by CN members:
- IDAS LPS P2
- IDAS LPS D1 (I think this is also the one Starizona suggests?)
- IDAS LPS D2 (doesn’t seem to be as much love on CN for this one?)
In addition to these, I am curious about simply using an IR/UV cut filter and letting the camera work it’s EAA magic without any LP suppression from a filter? And would I be better off anyway with just an IR/UV cut on those rare nights when I observe from a dark sky site?
Finally, I accidentally ended up with 2” Orion SkyGlow Imaging filter a year or so back that I think will fit the HS (I’m aware there is a potential thread pitch issue). This is a zero cost option since I already have it and I’m not opposed to saving $150 to $200
So my full list of options becomes:
- IDAS LPS P2
- IDAS LPS D1
- IDAS LPS D2
- basic IR/UV cut filter (Baader?)
- Orion SkyGlow Imaging filter
Which of these would be the best option for a leave-it-mounted-in-the-HS filter for my intended use?