Поднакопил еще немного сигнала из зеленой зоны, добавил к тому, что отснял из города. В теории увеличил SNR в 2.5 раза (исходя из количества добавленных кадров). Используемый фильтр конечно далеко ...
Thank you! Of course, there's quite a bit of noise reduction applied here, but modern tools allow for good results even with limited integration time. Cooling certainly played its role as well. Each time, I aim to gather more signal, but due to weather or other reasons, it doesn't work out, and I have to pull out what I can from what's available. It becomes tempting to shoot like this every time. I hope someday to capture enough material that I can manage without noise reduction altogether.
Well, of course! But honestly, the material was already pretty good—I even thought about not running it through bxt. And that’s despite the hydrogen being a bit soft due to inaccurate focus and the bandpass shift at f/2.8. It’s still better to let the oxygen go slightly out of focus. But since this was a test session, I didn’t bother fine-tuning it. Anyway, once you get hooked on this, there’s no going back.
I don't mind modern processing methods! But really, it's worth accumulating at least a few hours of data—the result will be even better!
Did you stretch the histogram somewhere, in GraXpert? I just don't see PixInsight mentioned in the description, so it's not very clear.
Yes, that's clear and needed. The detail will be higher. Just haven't had luck with the weather yet. I processed it in Siril, all the basic processing was done there. Using the modified arcsinh transform in the GHST tool.
Thank you! Plugins certainly add a nice touch (I wouldn't call it beauty) and allow you to, for example, reduce noise, but they also significantly distort details and remove or add stars.
It depends on which ones. For Topaz Denoise, that's true—I don't like that either, so I don't use it. BXT and Graxpert Denoise don't add anything; I've checked by comparing them with the original stack.
10 Sep, 2024
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Did you stretch the histogram somewhere, in GraXpert? I just don't see PixInsight mentioned in the description, so it's not very clear.
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