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Is physical seeing much like a photographic/camera picture taking? Why?

Is physical seeing much like a photograph/camera picture taking?

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    Not really, though you can train yourself to see, and visualize scenes. Starting with the basics; the brain is the most powerful image processor known. How many times have you seen snapshots that just didn't capture what you thought you could see at the time. Whether it's you concentrating on a distant image, or objects that due to their irrelevance in the scene you just didn't notice. When you take the shot it just doesn't look the same, by default the camera gives everything in the scene the same priority, so it's up to you the photographer to focus (as in emphasise) on the subject you are interested in. Here's a good one for you too. Stand about 10 foot away from a brick wall. Looking straight ahead at the brick wall, use you peripheral vision (you don't move your eyes) to examine wall. Pay special attention to long straight lines, such as where the wall meets the floor. Keeping your eyes fixed on the centre of the wall but paying attention to the join of wall meeting floor, trace it from one end to the other. Notice anything odd? You ought to, it's not the straight line that your brain tells you it should be, in your peripheral vision it will curve. You know it's a straight line, your brain tells you it's a straight line, but the view from your peripheral vision is a curve, not dissimilar to a fish-eye lens. If you think about this, it has to be, using our peripheral vision we have a field of view in excess of 165 degrees to the sides!

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No, it is completely different, as was the whole point of Feininger's seminal book "Photographic Seeing." Meyerowitz also talks about how the camera records everything in a scene and we get to look at the whole scene, something you can do in real time. In the 1/1000th of a second your brain can only deal with one or two things.

Yes. The basic working parts of the eye and the method it uses to capture an image are replicated in a camera. The eye has a lens, an iris, and a retina - which in a camera is comparable to a lens, an aperture, and film (or digital sensor). The major difference is that a camera also has a shutter, which the eye doesn't.

B K

In both cases, light is focused by a variable-focus lens on to a light-sensitive medium. In the case of the eye, the resulting image is instantly processed by extremely sophisticated software, developed over hundreds of millions of years, to produce detailed information for the user. In the case of the camera, the initial image is processed either chemically or electronically to produce a final image which is then viewed through the eye. In the case of the camera, the materials used are metals or plastics, glass, electronic components and maybe some chemical salts. In the case of the eye, the materials used are basically bone, jelly and water, with a few million neurons doing the processing. Oh, and some chemical salts. Same basic process, rather different methods and materials.

david f

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