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Figure 40 - Using the device to hunt down security cameras
Figure 40 - Using the device to hunt down security cameras

If you added an optional switch to turn the LED array on or off, then you can also use your night vision viewer to hunt down other sources of infrared light such as hidden spy cams or security cameras. Figure 40 shows how a night vision camera looks to a still camera (using the flash at night) and how it looks using the night vision viewer. The still camera sees a dull purple glow from the security camera, but the night vision viewer sees it as a brilliant beam of white light. Covert cameras like this can be spotted from a great distance due to the amazing sensitivity of the low lux camera to infrared light.

The night vision viewer actually has a third function as well - to swamp out security cameras so they cannot see you. By switching off the viewfinder and just leaving the infrared LEDs on, you can simply point the unit at a security camera as you walk past and it will completely wash out the picture, making it impossible to see who you are. This is great when you value your own privacy.



Figure 41 - Ready to cut through the darkness!
Figure 41 - Ready to cut through the darkness!

We hope you enjoyed building the Night Vision Viewer, and may all of your covert operations succeed! Don't get into too much trouble with your new toy, and if you do, always remember, "You never heard of me or this website"!
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