• Goldman Hartley posted an update 5 months, 1 week ago

    We live in an age of wonderful technological advancements in the visual technology fields. Photo camera models renew themselves each and every year with the promise of more mega-pixels and new features. Nevertheless, if we contemplate it for just a moment, the photo links out of your video cameras most times has strengths and weaknesses that persist through all the successive appliances go through our hands.

    Video cameras as well as in general all photographic cameras are, despite each of the marketing buzz, still restricted machines. For instance, they register our world with sensors that will only capture a small fraction of the tonal range our eyes can perceive.

    Imagine yourself on a sunny day facing an attractive landscape. Below you, around the feet, you can see the rich lush green vegetation; above you, the brilliant blue skies. Once we contemplate this scene, our eyes are able to perceive it’s richness, the important points in the shadows and the bright clouds above. The dynamic range our eyes can process, which works in the darkest on the brightest areas, is sufficient to contain a lot of the rich detail in this scene.

    Now take the photo camera and snap a go from the position including both vegetation along with the sky. The result is very telling. Depending on the parameters that either the camera otherwise you choose, some detail in the scene will disappear in the result. Either parts of the vegetation will blend to black and lose all detail or aspects of heaven will blend to white and lose all detail.

    To conclude, the retina with the camera, its digital sensor, which captures the lighting in the scene, is just not capable of coping with tonal range as large as our eyes can. It may only capture the full detail in a tiny range that can be positioned at different degrees of brightness with the camera itself or us. Because of that, in the scene like the one described above with a substantial contrast, it ends up capturing the detail only at the highlights and mid-tones, or mainly at the mid-tones, or mainly at the shadows and mid-tones. It cannot capture simultaneously the total detail of the scene through the darkest towards the brightest areas.

    This is naturally a simplification of an scenario that we could describe in a lot more detail. But the conclusion remains to be the same. Whenever we glance at the final photo, we realize that might know about remember seeing with the eyes is just not what are the photo shows. That richness of detail everywhere is fully gone. And this is just one of the restrictions that most Photo cameras share. We will go on to describe a great many others associated with color precision and other locations where cameras just can’t deal with the depth and richness of the world around us.

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