We are now living in an age of wonderful technological advancements in the visual technology fields. Photo camera models renew themselves every year with all the promise of more mega-pixels and extra features. But, when we think about it as it were, the photo which will come from each of our digital camera models most times has pros and cons that persist through all the successive appliances go through our hands.

Digital Cameras along with general all photographic cameras are, despite each of the marketing buzz, still restricted machines. For example, they register our world with sensors that will only capture half the tonal range that the eyes can perceive.

Imagine yourself on a sunny day before a good looking landscape. Below you, around the feet, you can observe the rich lush green vegetation; above you, the bright blue skies. Even as contemplate this scene, our eyes are able to perceive its richness, information both in the shadows along with the bright clouds above. The dynamic range our eyes can process, which works through the darkest on the brightest areas, is sufficient to contain almost all of the rich detail in that scene.

Now bring your photo camera and snap a shot from your position including both vegetation along with the sky. It feels right very telling. With regards to the parameters that either the digital camera or you choose, some detail from the scene will be gone through the result. Either aspects of the vegetation will blend to black and lose all detail or aspects of the night sky will blend to white and lose all detail.

In summary, the retina in the camera, its digital sensor, which captures the lighting in the scene, is just not able to coping with 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 amounts of brightness through the camera itself or us. Because of that, inside a scene such as the one described above that has a large contrast, it eventually ends up capturing the detail limited to the highlights and mid-tones, or mainly on the mid-tones, or mainly in the shadows and mid-tones. It just cannot capture simultaneously the total detail of the scene in the darkest to the brightest areas.

This really is needless to say a simplification associated with an scenario that we could describe in considerably more detail. Though the conclusion remains to be the same. Once we go through the final photo, we realize that what we remember seeing with our eyes is not exactly what the photo shows. That richness of detail everywhere is finished. And that is one amongst the constraints that all Photo cameras share. We could pursue to describe numerous others in connection with color precision along with other areas where cameras just cannot manage the depth and richness around the globe around us.

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