Woos H D R Images

Discussion in 'Photography Talk' started by wiseowl, Oct 15, 2018.

  1. wiseowl

    wiseowl FRIENDLY ADMIN Staff Member

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    HDR photography (high dynamic range) is a technique that involves capturing multiple images of the same scene using different exposure values, and then combining those images into a single image that represents the full range of tonal values within the scene you photographed. I am no expert and I mostly use it in our dark low light winters to fetch the colours out more it is just an hobby of mine ,its a little like Marmite some people love it some people hate it :smile:

    Dynamic Range Of The Human Eye
    The human eye has an incredible dynamic range that is estimated to be around 20 stops. A stop is simply a measurement of light that will be further explained in a later article within this HDR series. The dynamic range of the human eye is significantly broader than most DSLR cameras with ranges between 10-14 stops.

    For example, take a moment and look at the room around you. Most likely, you will see a room with bright highlights where you have lighting (be it a window or tungsten light) and you will also see dark shadows where the light isn't falling. However, our eyes can generally see the entire dynamic range within a scene like this. Meaning, you can see details in the shadows and simultaneously see the detail in the highlights. Take a moment and walk outside, after your eyes adjust, you can once again see all the detail in the shadows and the highlights (even when looking in the direction of the sun).

    However, in these same scenes, the average camera is only going to see a portion of that 20 stop range. For example, if your camera has a dynamic range of 10 stops, then the camera will see half of the range that your eyes would see. Let's relate this to our examples. If you are inside, and you are trying to see the detail in the shadow areas of your room, your camera is going to reach a limit where everything brighter than that 10 stop range will be completely blown out. Likewise, stepping outside, if you wanted to capture the detail in the clouds and bright sky, the camera will not be able to show detail in the darker shadows that are below the horizon line.

    I am sure you have all had the experience of trying to take a portrait of a friend standing in front of a beautiful sunset. Remember how that shot always turns out? Either your friend is nice and bright, and the sky behind him/her goes completely white, or the sky looks amazing and colorful and your friend is pitch black.

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    • Fat Controller

      Fat Controller 'Cuddly' Scottish Admin! Staff Member

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      The autumn colours are out in force there @wiseowl
       
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      • wiseowl

        wiseowl FRIENDLY ADMIN Staff Member

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        • Sheal

          Sheal Total Gardener

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          @wiseowl you know I'm not a lover of HD but they are good shots. :thumbsup: Do you think that HD enhances the colours?
           
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          • wiseowl

            wiseowl FRIENDLY ADMIN Staff Member

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            Good morning @Sheal my good friend yes it does but falsely ,its just a little hobby of mine in the winter months when the light is almost non existant ,like you I much prefer a non edited shot,enjoy your day:smile:
             
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            • wiseowl

              wiseowl FRIENDLY ADMIN Staff Member

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              Sunflower this morning:smile:
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              • wiseowl

                wiseowl FRIENDLY ADMIN Staff Member

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                Good morning the view from woos nest:smile:
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                • Fat Controller

                  Fat Controller 'Cuddly' Scottish Admin! Staff Member

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                  Is that a reservoir in the mid-ground of that photo @wiseowl
                   
                • wiseowl

                  wiseowl FRIENDLY ADMIN Staff Member

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                  • wiseowl

                    wiseowl FRIENDLY ADMIN Staff Member

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                    Good evening:smile:

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                    • Fat Controller

                      Fat Controller 'Cuddly' Scottish Admin! Staff Member

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                      • wiseowl

                        wiseowl FRIENDLY ADMIN Staff Member

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                        Good evening @Fat Controller and thank you my friend,very much appreciated as always:smile:

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                        • Sheal

                          Sheal Total Gardener

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                          Lovely shots and your horizon line is spot on Woo, that's what I like to see. :thumbsup:
                           
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                          • Phil A

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                            Cor Woo :) :thumbsup:
                             
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                            • wiseowl

                              wiseowl FRIENDLY ADMIN Staff Member

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                              Fields ploughed already:smile:
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