Infrared photography used to be dead easy. You’d buy some IR film and put a dark, dark red filter on the front of your lens. Then you’d turn the focus ring a notch to the left to compensate for the fact that the IR light focuses differently. Apart from not actually being able to see [...]
Source: http://www.wired.com/gadgetlab/2011/04/compact-infrared-camera-sees-in-the-dark/
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