mbocca wrote: ↑
Thu Sep 17, 2020 11:46 am
I use the ASI1600mm and do exactly what you mentioned. I run at 0C in the summer and -10 in the winter. At 0 in the summer months I am usually between 25 and 30% power.
The library also has to include the differences in gain. I have a Narrowband Gain and a Color Gain. I use the same offset for both.
This gives a total of four libraries when you combine different temperatures and gains, each with varying times.
Thanks Mike. Very helpful information. Those are the two temperatures that I will start with. I only need a set of each, but I have no idea what to set my exposure to until I take some light frames and check out the histogram.
I expose the dslr
at iso 400 for 180-240 seconds using an IDAS LPS D-1 filter. The L-Enhance should be on the way soon.
I plan to leave the gain at 100 (unity for the 533) until I get more familiar with the setup.
I might set up the camera in a dark room and just shoot some 30 second and 60 second darks at 0C and -10C just to have something.
bobharmony wrote: ↑
Thu Sep 17, 2020 12:46 pm
Congrats on receiving the camera, Jim. It's good that you have this chance to "kick the tires" a little before actually trying out a session.
I downloaded N.I.N.A. a while ago and tried it out with the Canon. It worked fine, targeting, plate solving and meridian flips were handled well. My only gripes were that 1) it wouldn't record the camera temperature, and 2) as an old guy I was uncomfortable with the Discord support model. I went back and forth with the developer about the temperature. As the reported value isn't the sensor temp for a DSLR, he was reluctant to report it and have it used to match darks to lights. Maybe when I get to a cooled astrocam I will give it another go.
Yeah Bob, big change from the dslr
just from fiddling around with the 533. Looks like I have several cloudy nights ahead unfortunately.
When I do get out, I need to first achieve focus, then shoot for a plate solve. Sounds very exciting!
I had trouble using the Nikon with N.I.N.A. It would connect, but live view wasn't right. With the ASI camera and N.I.N.A. the camera, scope, and focuser connected perfectly first try. It was a pleasant experience although I still plan to use APT
Scopes: Explore Scientific ED102 Triplet APO, Celestron Nexstar 130 SLT.
Mounts: Celestron AVX with Orion MM Autoguider, SLT;
Binoculars: Bushnell 10X50
Stuff: ASI EAF Focus Motor, Stellarview FF/FR
Camera / Software: ASI 533 mc pro, Nikon D5300 (Ha mod), IDAS LPS D-1 Filter, Optolong L-Enhance filter (on the way), Astrophotography Tool, PHD2, SharpCap v3.2, StarTools 1.7.4xx alpha, Adobe Photoshop 2020
Sky: Bortle 7-8
Astro Photos https://flickr.com/photos/157183480@N07 ... 7681236785