• 42 Posts
  • 92 Comments
Joined 1 year ago
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Cake day: January 10th, 2024

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  • bistdunarrischOPtoAstrophotographyNGC6888
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    5 days ago

    Sadly my lens has not perfect back focus, since I‘m using a system camera there is nothing I can change about that. The effect is a little bit compensated with using BlurXTerminator.

    The image is cropped a quite a bit, the aspect ratio is still 4:3 however.








  • Thank you for your work.

    As far as I understand it one of the big advantages is that every viewer simultaneously provides its download data for others to stream (peering). With this approach server capacity can be reduced but I wonder how well this works (If I even understood it correctly).

    With this system could it be possible to host videos on an own server without having to pay huge sever costs?

    Also what is a nice website to search through all videos, similar to the front page of YouTube?











  • bistdunarrischtoAstrophotographyM42 (Orion Nebula)
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    5 months ago

    The stripes are called walking noise/ pattern and often show up when not using a tracking mount and not using dithering.

    Because not every pixel of your camera captures signal exactly equally bright you‘ll see this difference along the movement of the sky as it gets accumulated with every subframe. The only way to get rid of it is to vary the pixels for each part of the image after each exposure. This can be done by moving the camera slightly after each shot. This process is called dithering.

    With good calibration frames the pattern can by minimized very slightly. Other than that the only real option for processing I can think of is to hide the pattern by not stretching the dark ares too much.

    Other than that great image!