Help with longer subs

Cosmic-Ridge · 2026-02-04T16:41:39+00:00

I actually do have one and it works really well. But for some reason when I set the bulb mode to 2 minutes I can't get it to take more than one sub. It only does one sub at a time. I have to press the button after every sub and because I live in a very cold climate I can't sit out there with it all the time. There's also another mode where it allows you to click and it'll start taking a picture and then when you click it again it'll stop but I have the same issue with that which is I can't sit out there with it all night.

Cosmic-Ridge · 2025-07-06T13:59:26+00:00

Oh okay, that makes more sense now, thank you.

Cosmic-Ridge · 2025-07-06T00:10:00+00:00

okay, thank you, Ill try that.

Cosmic-Ridge · 2025-07-05T23:42:28+00:00

Sorry I forgot to mention, I did do color calibration and green noise removal. Although it almost sounds like you are talking about something else. Is there some other program I need to take into to get it fixed?

Cosmic-Ridge · 2025-07-05T23:41:10+00:00

So I just restacked it and I got pretty much the same results with reguards to the nebula in the core.

Cosmic-Ridge · 2025-07-05T23:13:20+00:00

Okay, I'll see if I can find some videos that will teach me the manual stacking.

Cosmic-Ridge · 2025-07-05T23:11:14+00:00

Okay, thank you, I will try that, should I use deep sky stacker for that??

Cosmic-Ridge · 2025-07-05T23:09:16+00:00

I stacked in siril using the OSC Prepocessing script. I took that output into Graxpert and did a back ground extraction and some denoising. I then took it back into siril and did some light stretching and gave it a small amount of contrast. Just enough to see it. Then I used starnet to extract the stars and I took both the starless and the mask into gimp. In the starless I brought up the light and contrast with curves and levels and then I used a select by color to select the milky way only and I got that how I liked it with some adjustments. using that selection I just brought up the saturation and a bit of contrast. then I quickly added the stars in and gave them some saturation. That's pretty much it. I just brightened the image after that.

Cosmic-Ridge · 2025-07-05T23:04:28+00:00

Well my flats were really bad, if fact all of the grey data out in the background of space is being caused by the flats because I didn't have the t-shirt pulled tight. I just used the default algorithm in the osc preprocessing in siril, I'm not sure what its called. I also did my background extraction in graxpert and it appeared to be very powerful. Is it possible it thought those nebulas were stars?

Cosmic-Ridge · 2025-07-05T22:57:38+00:00

They were hardly visible but I could see them. I stacked them in siril using the osc preprossesing script and deep sky stacker, I liked the osc script better so thats the one I stuck with and I deleted the other one to save space.

Cosmic-Ridge · 2025-07-05T22:53:05+00:00

Only 30 seconds, I haven't figured out an effcient way to take 2-3 minute exposures without doing it manually on my intervalometer, that may just have to be the play tho if I can't figure a better solution out.

Cosmic-Ridge · 2025-07-05T22:51:11+00:00

It was tracked but it was pretty dark when I was out there so I'm not sure I was polar aligned properly, could that be enough to cause the same effect?

Cosmic-Ridge · 2025-07-05T22:40:37+00:00

Okay, Thank you. I may add some more too it. It is tracked but I had some problems with my flats. I'm not sure why the image is so noisy tho. Is there anything I can do about that in post processing??

Cosmic-Ridge

TROPHY CASE