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I got my S50, but don't see some of those functions in the App

Exactly the video I was searching for! Thanks 🙏🏼 -I am considering a Vision Pro for my physics bachelor studies. Must be awesome to visualize stuff like Astronomy. Makes it way more engaging.

Please make a tutorial for mobile astrophotography..bytw. I'm a mobile astrophotographer now but i about buy a new telescope edisla astra 100 and i already captured milky way galaxy,orion constellation, scorpion, etc constellation, star trails,venus,moon, Jupiter, Sirius and lots of stars

I really like your approach when it comes to explaining field of view and image scale. Your use of mathematical formulas and performing calculations made these concepts so much easier to grasp even for us long time astrophotographers. Keep up the amazing work!

Could you put together a simple chart with the different types of frames on the left horizontal axis: darks, flats, bias, dark flats. And across the type such attributes as temperature and ISO (and perhaps others) and a check in the corresponding box if that attribute affects that type of frame. The goal here is to understand what is a "library" of calibration frames. To rephrase, does a library need to have a master bias frame for each ISO and temperature? Currently I'm sticking with ISO of 1600 but my camera is not cooled. This really is a nice video because it tells us *why* we are taking each type of frame.

What a crazy good explanation on these concepts, thank you!

This is the clearest and best presented explanation of calibration frames I have seen. A lot of materials found on forums are just recipes (good and bad) presented either without reason or with faulty reasoning. Thank you SK.

Thank you for making this video. It is the best explanation of calibration frames I have seen on CZcams so far.

Greetings from India ! Many congratulations! 🎉.Your gear selection is simply amazing just like your knowledge on the subject and ability to explain the technicalities in simpler terms.

Great view Underrated clip 👌🏻

It's a RASA8 on AM5?

I am huge fan of one shot color cameras because the lousy conditions at my nothernly latitude. And for the final result there are no 'real' or 'fake' colors because none of my deep sky images looks like the blue green visual impression seen in my telescopes... 😊 There are no colors in nature, color is about visual perception created by our brains.

Excellent video, your the first who actually said when you don’t use darks you still need to calibrate lights with the bias instead. One other fyi, you said calibration is really important for astrometry when measuring star brightness changes, I think you meant photometry, Astrometry measured position, photometry measures intensity, great presentation

This is, I believe, the first video I have seen of yours. I like your rice and plate algorithm. You are clearly smart and thorough. I think I'll be watching more.

Very well explained. Nice job!

Great tutorial. Thanks for that. I'am among the lazy fraction of astrofotographers, who try to restrict the calibration work to the indispensable minimum, which really matters in the final picture. Flats are indeed indispensable, specifically for fast optics, the other depend on the camera and the ambition for the final picture. You have supplemented what I exercise after long experimental experience with solid scientific justifications.

Some older ccd's require longer duration flats, or they record a shadow of the shutter. (KAF8300 sensors are a good example) What's really bad is when the "dust" moves over time during a session (mostly a DSLR problem). Flats just make it worse. I tried a round of low ISO flats, had to shoot a set of bias frames to calibrate the flats in PixInsight. I wasn't exploring it for long term use, just trying to clean up some borderline data. It did work but it's more cumbersome than it's worth. Better data is the solution (and sometimes a better camera).

great video - thank you

Wonderful summary! 😊

Hmm. I used to work with NASA colleagues on space projects. What should I think about this title?

I'm glad you started making these longer videos to explain things. How do you build up a library of master darks? Don't they have to be taken every time? I missed something, I think. I'll watch the video again. Also, if you every feel like making a video explaining proper ISO/gain settings for DSO imagining, I don't think I'd be the only person who would greatly appreciate that.

Excellent discussion of the needed exposure time for flat frames. I had the striping problem you described but didn't know the cause. Experimentation with neutral density filters between my light panel and telescope solved the problem by lengthening my exposure times. But until I saw your video, I didn't know why very short flat frame exposures were causing the problem. Well done!

All I understood from that is I'm hungry for some black beans and rice. :)

thank you for shanring ! very good video about telescopes

Thanks for the well thought out explanation. I have watched many calibration videos over the past 4 yrs. But your teaching skills are much better than most. Clear skies

Is this correct? Darks already contain bias so if you use dark frames you do not need to subtract bias from the lights. Bias or dark flats are need for flats.

Excellent explanation! I’ve heard this articulated before but your scale analogy is perfect

Thank you so much. Just curious as you said you use a master bias to calibrate as well. Is that used through WBPP. I kinda got lost there with how to implement it.

Thank you very much. I can take dark flats using NINA, but I don’t know how to identify them to pixinsight when I use WBPP.

Great job! You don’t just clobber us with knowledge, but back up and justify your views. Very clear explanation. One thing I would like to hear your opinion on is dark frame calibration with a DSLR or other non-cooled camera. Achieving a consistent temperature is obviously a challenge. How important is this, and what are the best practices for creating temperature-matched dark frames?

Very nice and detailed vidéo of calibration frames! I learned alot! Clear skyes from Québec, Canada!

May be this smart Space Koala might convince me to take calibration frames 😊Up to now I have only taken calibration frames for my ASI294MC Pro. To get rid of the the amp glow this camera unfortunately suffer from. For other cameras, including mirrorless, I feel the quality usually are OK. The "lights" are more affected by atmospheric conditions to be "perfect" anyhow in my sessions up to now.

Super informative, cool video! Thanks! :)

You say there's no straightforward answer when someone asks about the magnification factor in astro-imaging. I'd go even further and say the question doesn't even make sense. Magnification compared to what? At least with visual observation, it's clear what we're talking about: your eye sees an object 100x bigger through the telescope, so it's a 100x magnification, _compared to what you'd see with the naked eye._ But in astrophotography (as in any form of photography) there is no baseline, so nothing to compare against.

Very well done presentation. Thanks!

You live in a beautiful place. Similar to where we live here in Wellington New Zealand with water and mountain views. I look forward to seeing your results, and I’m now doing a search to see if I too can get my hands on one of these : )

I couldn't agree more: the creation of astrophotos and its colour is a combination of science, art and individual preferences. For the latter two, every combination of colours is allowed. However, if true colour representation is desired, scientific rigorosity is required. If narrowband line emitters, such H alpha, emitting at 656,28nm with a bandwidth much smaller than 0.1nm, are shall be represented in the RGB space in its true colour, then it must be placed exactly at R=255, G=000 and B=082.

Thanks for being clear and concise. It's very refreshing.

I’m a visual hobbyist. Your video provided TMI which I began to appreciate the further you went.

Excellent presentation and explanation. I am on the verge on "going mono" 🤪Subscribed.

Hi Lusa (is spelling ok?), thanks for the helpful video! Much appreciate the time and work to produce it. You gave me lots to think about. Beautiful Cygnus wall photo! I like your processing on it. Subscribed today. CS!

Great video. Subbed...👍

tysm, well explained and researched. Your channel subscriber count is going to blow up soon!

Great presentation and very clearly articulated. 8:27 subtlety throwing shade ... nice

very clear explanation. thankyou !

According to Trevor Jones, he only gets an improvement of ~14% going with Mono over One Shot Color, but its worth it to him. Remember folks, the deeper you get into anything, the more you see the subtle differences that the pro's are trying to improve upon, sometimes obsessing over. So if your just getting into AP, or its little brother Electronically Assisted Astronomy (EAA), Tiny Steps and Patience are your friend. You'll get there. Thanks! -mike

Well, that was a thorough and detailed video! Sub earned.

Never went to moon. Nasa means to deceive. Large movie studio. Why so much helium? Hahahaha

Excellent video!‼👍👍👍

Excellent presentation of astro optical basics... And, there's nothing wrong with your video editing. I have to ask: What's your day job? You're really good at this!