I have been messing around with longer focal lengths for quite some time and I completely forgot about my Hyperstar for over a year. Well last night, I pulled it out and I had a great night. Bortle 7 and 50% moon.
All taken with my Evo 8 on my SW AZ-EQ5 mount using a 294MC Pro and an IDAS LPS P2 filter. Used darks and flats made with my LED panel. I think the LPS filter really helps. Sorry, I had my camera flipped improperly so things might look a little different...
Horsehead - Gain 297, Exp 19.2, total time 8:06. I hate the glare from Alnitak but what are you going to do.
M1 - Gain 327, Expo 26.2, total time 10:26. I have went for this one many times at longer focal lengths thinking the smaller image scale would help but this is by far my most detailed image. I was very happy with this one.
M31 - Gain 162, Exp 60 seconds, total time 35 minutes. The core is very easy to blow out so I had to lower the gain quite a bit. This was my longest exposure date. My mount handled the 60 second exposure just fine with just a rough PA. Definitely the short FL helped in that regard. While 35 minutes is not really EAA anymore, I just wanted to see how much of the disk I could get. I am surprised that the LPS filter didn't kill this one. The general wisdom is that galaxies should suffer from LPS filters but it appears to have done ok. Definitely my best to date and it was getting a bit cold outside so I was viewing this remotely from inside using VNC. Got love that! You can see that I am having trouble with my flats in the corners. They help but making flats with this filter (and my ZWO Duoband) can be tricky.
Rosette Nebula - Gain 338, Exp 14.5 seconds, total time 15 minutes. Definitely my most detailed to date.
Edited by descott12, 24 November 2020 - 05:38 PM.