• Aldridge Wrenn posted an update 11 months, 1 week ago

    We reside in a time of amazing technological advancements in the visual technology fields. Photo camera models renew themselves each and every year with all the commitment of more mega-pixels and new features. But, whenever we consider it for just a moment, the photo which comes from all of our cameras usually has good and bad points that persist through all of the successive mixers undergo our hands.

    Video cameras as well as in general all photographic cameras are, despite all of the marketing buzz, still very limited machines. As an example, they register our society with sensors that can only capture a small fraction of the tonal range that the eyes can perceive.

    Imagine yourself a sunny day looking at an attractive landscape. Below you, around the feet, you can observe the rich lush green vegetation; above you, the bright blue skies. Once we contemplate this scene, our eyes can easily perceive it’s richness, information in the shadows along with the bright clouds above. The dynamic range that our eyes can process, which goes in the darkest on the brightest areas, is enough to contain a lot of the rich detail in this scene.

    Now take your photo camera and snap a trial from a position including the two vegetation along with the sky. The result is very telling. Based on the parameters that either your camera or you choose, some detail of the scene will be gone from the result. Either areas of the vegetation will blend to black and lose all detail or aspects of the sun will blend to white and lose all detail.

    In conclusion, the retina in the camera, its digital sensor, which captures the light with the scene, just isn’t capable of handling a tonal range as large as our eyes can. It can only capture the complete detail in a small range which can be positioned at different numbers of brightness by the camera itself or us. For that reason, in the scene like the one described above with a huge contrast, it ends up capturing the detail only at the highlights and mid-tones, or mainly with the mid-tones, or mainly on the shadows and mid-tones. It just cannot capture simultaneously the full detail of the scene from your darkest to the brightest areas.

    That is obviously a simplification associated with an scenario we could describe in a lot more detail. But the conclusion remains to be the same. If we glance at the final photo, we understand that that which you remember seeing with this eyes is not what are the photo shows. That richness of detail everywhere is finished. And that is one among the limitations that every Photo cameras share. We will will continue to describe many more related to color precision and also other locations cameras cannot cope with the depth and richness on the planet around us.

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