Date: 2012-08-26 13:08:21

Electromagnetic spectrum

Infrared photography

Optics

Infrared

Photography

Filter

Thermography

Thermographic camera

Nikon Coolpix 950

Electromagnetic radiation

Infrared imaging

Surveillance

All photos © 1999 Eric Cheng Looking at the World Through Infrared Glasses Eric Cheng By Michael Eagleson

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