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Anonymous
All digital sensors are sensitive to infrared light. Unfortunately, in normal daylight photography, this would give all of your photos (or video) a strong red tint, so all manufacturers stick a filter to filter out the IR over the sensor. What Sony's nightshot mode does is it removes the filter so you can take pictures by infrared light.
The light it uses isn't actually green, it's infrared. Since "infrared" isn't really a color humans can see, they give it fake color to look more interesting. Why green? Because people associate green with infrared because of the cheap green displays in the IR goggles used by the army.
This accessory spits out infrared light, which is only going to help you on a camera without an infrared filter. I.e., a Sony with NightShot mode. The IR filters on other cameras usually aren't perfect, so this might help a little bit, but not as much as you want.
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