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  1. #1
    Senior Member

    How to take this shot or make this image?

    How to take this shot or make this image?
    This is a screenshot from the National Geographic site. Just wonder how the image is photoed or processed?

    How to take this shot or make this image?-screen-shot-2020-11-17-10.13.34-pm-s.jpg


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  2. #2
    Senior Member
    FredKingston's Avatar

    Re: How to take this shot or make this image?

    Thanks/Like Roy1961 Thanks/liked this post
     

  3. #3
    Staff
    Super Mod
    hark's Avatar

    Re: How to take this shot or make this image?

    How to take this shot or make this image?
    You can either take one long exposure or multiple shorter exposures that get combined. Steve Perry has this option for the latter and explains he takes multiple images to help cut down on noise. But you can also accomplish it by taking one long exposure.

    Cindy - D750, D500, D7200
    Flickr
    and My 2020 Thread

    Where the Spirit does not work with the hand, there is no art
    -- Leonardo da Vinci



  4. #4
    Senior Member

    Re: How to take this shot or make this image?

    How to take this shot or make this image?
    Thanks, Fred and Cindy. Know all about star_trail photographing. But the image shows both northern lights and star trail scenes. Here is another screenshot image taken at the same place: Yellowknife and Great Slave Lake, Canada.
    Only northern lights are the main scene and no star trails.
    How to take this shot or make this image?-screen-shot-2020-11-18-10.44.57-am-s.jpg
    Last edited by blackstar; 11-18-2020 at 08:02 PM.

  5. #5
    Senior Member
    480sparky's Avatar

    Re: How to take this shot or make this image?

    It's a composite.
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  6. #6
    Senior Member

    Re: How to take this shot or make this image?

    Thanks, sparky. I also thought it's some sort of composite image. Just wonder if it's a composite from one northern-lights image and one star-trails image? If so, how?

  7. #7
    Senior Member
    480sparky's Avatar

    Re: How to take this shot or make this image?

    I would use two layers in GIMP. The aurora in the top layer. Set that layer mode to "Screen" and adjust the contrast and brightness.
    Thanks/Like hark Thanks/liked this post
     
    Don't mind me... I'm out roaming around somewhere between Zone III and VII.


    Go forth and actuate!


    My Website.

  8. #8
    Staff
    Super Mod
    hark's Avatar

    Re: How to take this shot or make this image?

    Quote Originally Posted by 480sparky View Post
    I would use two layers in GIMP. The aurora in the top layer. Set that layer mode to "Screen" and adjust the contrast and brightness.
    I agree with Sparky. It can be done as more than one image combined together.
    Cindy - D750, D500, D7200
    Flickr
    and My 2020 Thread

    Where the Spirit does not work with the hand, there is no art
    -- Leonardo da Vinci



  9. #9
    Senior Member

    Re: How to take this shot or make this image?

    Ok. Thanks, sparky. I use gimp and will dig into it to find out details.

  10. #10
    Senior Member
    BF Hammer's Avatar

    Re: How to take this shot or make this image?

    I see the star trails in front of the aurora, which is actually just weird to my eye. So he took a long exposure which I presume brought out the ground level exposure and minimized ISO noise. It could be 1 very long exposure or a layer-stack with many exposures. The aurora appear to be more noisy, so a shorter exposure at a higher ISO setting. He then layered them and combined. But again, the trails in front of the aurora look weird to me and I would have either layered different or thrown out the whole project.
    Thanks/Like hark Thanks/liked this post
     





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