Psychedelic TV/Camera Feedback

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Published on ● Video Link: https://www.youtube.com/watch?v=eD9rr0gTLSU



Duration: 2:33
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The output of the video camera is hooked up directly to the TV. When the Camera's frame is larger than the TV, you get the "Infinite hall" effect; when the frame is smaller than the TV, you just get boring stripy pixelated static; but when the Camera's frame begins to match-up with the TV's screen, i.e. you see nothing but the screen but still see the whole screen, when that happens, you reach the magical "sweet spot" where crazy cool and wonderful patterns appear.

As you zoom in, the "infinite hall" begins to fade away into just a blob of light in the middle of the screen, and then as you approach the "frame = screen" point, the image begins to fluctuate wildly based on slightly different orientations of the camera. You will see that sometimes it flashes reddish images (this is when you are just slightly misaligned, and then once you stabilize past that, the whole blob turns blue and begins to take on a texture like that of a brain or fingerprint and it looks like you're zooming over a psychedelic brain-coral landscape. Tilting the camera causes rotation of the image, as shown near the end.

Now, here's the mystery: WHY DOES THIS HAPPEN? Theoreticly, when the camera is looking at the whole screen, all the screen and nothing but the screen, the camera-input (the image on the screen) is identical to the output (the TV displays what the camera sees). It's a closed loop, yet there are some feedback phenomena which produce what you see from seemingly nothing.

I still need to test to see what happens if I add some sort of signal of my own to the feedback, like sticking a piece of paper in front of the TV, and to also see if it does the same thing on different displays; a CRT computer monitor, an LCD flatscreen, etc. Much experimenting to do.







Tags:
camera
tv
feedback
infinite
hall
tunnel
zooming
psychedelic