Traditional Culture Encyclopedia - Photography major - What is 3D photography?
What is 3D photography?
People's eyes are 60-65 mm apart, so when looking at things, the image seen by the left eye is different from that seen by the right eye. It is these two images from different angles that will give us a three-dimensional sense after being synthesized in the brain.
The so-called 3D is the left-right displacement caused by parallax, and finally the 3D effect will come out. There are four kinds of parallax: zero parallax, the left eye and the right eye see the same distance; The right eye is in front of the left eye, and the general picture is behind the screen; Negative parallax means that the picture seen by the right eye is on the left of the left eye, and the picture seen by negative parallax should be in front of the screen; Normal eyes can't have scattered vision, so avoid scattered parallax when shooting. Zero parallax is usually a picture of a movie or TV. Which is the screen? Zero vision is almost a movie screen and a TV screen. If you want to use the screen as a reference, the screen can also be used as a reference. The difference in elevation is that the right eye is on the right side of the left eye, its point falls behind the screen, and the effect of the picture is at the back of the screen. The negative parallax picture is in front of the screen defined by zero parallax, the picture seen by the right eye is on the left of the left eye, and the objects are all outside the screen, which will produce a sense of suspension and fly in the visual direction. The scattered parallax will not be scattered by human eyes, and there will be no such picture in real shooting.
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