Any first light reports yet?
I finally got a decent night on Saturday but spent Sunday doing Super Bowl things (I'm near Kansas City...Go Chiefs!) It had been so long since we had a decent night sky, I had a lot of excitement built up to try my new AT80ED and of course, things didn't go well. I waited nearly 2 hours to even be able to polar align my mount (EQM-35Pro). Once I was able to get things going, my first problem was balance. I should have done this in advance but once I got aligned, I mounted my DSLR. I was well off the mark and my mount let me know immediately. In the process of rectifying the balance (big duh moment), I managed to also disconnect the power cable. So I basically had to start over, which made me none to happy seeing all the clouds still around. I knew I was working against the clock. One reason I mention all this is that I want to note here is that with a Canon T6 DSLR at focus, I had to move the dovetail as far back as I could to balance, and it was still at the end of the bar. It works, but I'll probably get a longer one, especially if I get a FR/FF.
After these disappointing moments, I finally got lined up on Sirius and took a shot after getting focus again. Time to mention the focuser. It's fantastic. A little stiff to start with but still buttery smooth and the 10:1 is flawless. I used APT and a B-mask to dial it in. Anyway, Sirius had some purple fringing around it, which I expected, but little to none around any less luminous stars. The sky still had about 60% cover, and the rest was whispy, not completely clear. How much of that color is to blame on the vapor in the air, I won't be able to tell until a truly clear night. My true expectation is to have some color around bright objects, however it appears to be tightly controlled otherwise.
I dialed in the "Easy button" of DSO's, M42 and GoTo was fairly spot on. I blame my haste in trying to hurry up...never a good idea. I had about an hour with fairly clear hole in the clouds for image capturing and it was truly fantastic. Velvety black background and nice round stars. I decided to go unguided, 1 minute exposures, so that if a cloud wandered into frame it wouldn't have a chance to ruin a longer exposure. I wasn't going for Horsehead here.
I'm attaching a lightly stretched and processed version of a 10x60s stack, uncropped, with 5x darks. These are at 1600 ISO which, again in my haste, by the time I noticed how blown out the center was, I was 3 or 4 exposures into the sequence and clouds closing in. Would have been better at 800 probably.
So, not a perfect night, but I have to say I'm super happy and can't wait for future, better nights. The AT80ED telescope as a whole met or exceeded my expectations as a fairly new amateur.