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Group Description

Exchange and discuss your pictures of Light Traces here!
Any pictures of traces that are related to physics, math, sports, and motion are welcome!

"Light Traces" is a hands-on activity of the Exploratorium, San Francisco.

Try it:
The pictures were taken with a regular digital camera set to an exposure time of 1 second. The lines you see were created by the small lights of a Christmas light string.

You can use any small light source to make the trace of a moving object visible (bicycle light, flash light, key light). Just attach the light to the object, and make sure the room is completely dark. Then take a long exposure picture of the moving light using your Digi Cam (exposure time: 0.1 to 10 sec, or more if you can).

THE light to use: INOVA MICRO LIGHT, $5 at TacLighting.
Read a How-to: LEDphotography


sebastianm at

Read more about this at the Light Traces Web page.

Check out the new Explo Photo Pool:

Exploratorium San Francisco. Get yours at

Additional Info

  • Accepted content types: Photos, Videos, Images, Art, Screenshots
  • Accepted safety levels: Safe
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