High Resolution Lunar Imaging 1 - Stacking Lunar Images in Autostakkert!4

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  • เผยแพร่เมื่อ 24 ม.ค. 2025

ความคิดเห็น • 24

  • @TheSwedishDutchmen
    @TheSwedishDutchmen วันที่ผ่านมา

    Proud to be your 730th subscriber. Can not believe you don't have more! Not only is this exactly the thorough walkthrough of this process that I was frustrated in not finding, it's also filled with sensible reasoning as regards to why you check certain boxes and choose certain values. This gives the viewer the knowledge and confidence to experiment with the parameters on their own. Very well done and looking forward to watching your other content! Love from Sweden

  • @JimGriskewicz
    @JimGriskewicz หลายเดือนก่อน +1

    Thank you for this most informative tutorial! Your in depth presintation held my interest and gave me a good starting point. The program didn't save the stack when I had save anchor checked. I'm sure it was just beta blues. Thanks again!

    • @michaelpowen
      @michaelpowen  หลายเดือนก่อน

      Hmm. The only time I have seen that is when accidentally forgetting to enter a number of frames or a percentage to stack. It will happily go through the surface stabilization and then the alignment phase but produce no stack.

  • @williamswayne8090
    @williamswayne8090 6 หลายเดือนก่อน +1

    Only 1/2 way through the post and I had to stop to say thanks. Really appreciate the deep dive into Autostakkert. First thing I need to do is upgrade to v4. Keep these coming.

    • @michaelpowen
      @michaelpowen  6 หลายเดือนก่อน

      Thank you very much! More to come.

  • @jackdeangelis8052
    @jackdeangelis8052 6 หลายเดือนก่อน +2

    Well done! Looking forward to future videos. Subscribed.

    • @michaelpowen
      @michaelpowen  6 หลายเดือนก่อน

      Awesome, thank you!

  • @muctebaaliklc5715
    @muctebaaliklc5715 6 หลายเดือนก่อน +1

    Beautifully detailed explanation mate, waiting for future episodes

    • @michaelpowen
      @michaelpowen  5 หลายเดือนก่อน

      Thank you very much; more on the way!

  • @Ricklflyfisher
    @Ricklflyfisher 6 หลายเดือนก่อน +1

    Very informative. I am looking forward to the rest of your tutorials. Thanks!

    • @michaelpowen
      @michaelpowen  6 หลายเดือนก่อน

      Thank you very much. More on the way.

  • @AmatureAstronomer
    @AmatureAstronomer 6 หลายเดือนก่อน +2

    Nice work.

  • @TonyK-111
    @TonyK-111 2 หลายเดือนก่อน +2

    Great Video, very very useful, Thank You. I do have a question though, Is it possible to switch the view between the different files that have been opened? Thanks

    • @michaelpowen
      @michaelpowen  2 หลายเดือนก่อน +1

      Yes. Under File, Open Data Browset. Navigate to the folder where the files are stored (make sure you have Sequences checked and not Images, which I believe is the default). Click on a filename and it will show it in the preview window.

    • @TonyK-111
      @TonyK-111 2 หลายเดือนก่อน +1

      @@michaelpowen thanks very much 😊

    • @michaelpowen
      @michaelpowen  2 หลายเดือนก่อน

      @@TonyK-111 You are very welcome!

  • @dulcimoredan
    @dulcimoredan 5 หลายเดือนก่อน +1

    Thank you sir!

    • @michaelpowen
      @michaelpowen  5 หลายเดือนก่อน

      You are welcome!

  • @TomKrajci
    @TomKrajci 23 วันที่ผ่านมา +1

    Thank you for the detailed explanations!
    I'm dipping my toe into stacking of lunar images, using a modified Sony a6300 that has the Bayer filter array and IR cut filter removed. It is sensitive into the near IR. Without the RGB array it's a poor man's Leica monochrome camera. I image the very young crescent and seeing at high air mass is not as bad in IR.
    For a mirrorless camera, how should I change my work/processing flow?
    Thank you in advance.

    • @michaelpowen
      @michaelpowen  14 วันที่ผ่านมา +1

      First, do not take this as definitive. I have done quite a bit of lunar imaging with the Sony a6000, but not in a couple of years. Others might do things differently. But what I did was (a) shoot stills, not video (video resolution is very limited, and the video will be compressed; there is no raw video option on the Sony) (b) use an intervalometer or other remote shooting method to avoid camera shake (c) do NOT shoot bursts, as the shutter slap will ruin the shots (at least on the a6000 there is no way to use electronic shutter only) (d) shoot ISO100 at whatever exposure you need to get a good (maximized but not blown out) histogram (e) how many frames you shoot will be determined by your patience and your sampling ratio (the a6000 has 3.9 micron pixels if I recall correctly; so on my f/10 SCTs it is undersampled by about 2X, on my f/5 Dob by about 4X; the higher the under-sampling, the fewer frames you need) (e) use RawTherapee to convert your RAWs to PNGs or TIFFs for stacking (I like PNGs) (f) stack the frames in Autostakkert just like a video. When converting to mono you might have to do some experiments to determine the proper luminance weights, as the camera images will have a CCM applied already; I can't tell you want they will be, but you want to choose weights that minimize the noise in the resulting grayscale image. After converting to mono, process as you normally would.

    • @TomKrajci
      @TomKrajci 14 วันที่ผ่านมา

      @@michaelpowen Thank you! This gets me started down the right path. (Bonus: a6300 allows electronic shutter only.)

  • @lotus30com
    @lotus30com 6 หลายเดือนก่อน +1

    Awesome video! I'd be interested in seeing a demo of the drift method.

    • @michaelpowen
      @michaelpowen  6 หลายเดือนก่อน +1

      Well, if I ever have clear skies again, I'll try to demonstrate the technique. ;O) And thank you very much!