Night vision goggles (NVGs) used by military combat units cost thousands of dollars. But with “Digital Night Vision” goggles have made night vision affordable for civilians; in the hundreds of dollars (and sometimes under a hundred). GTMedia sent me their newest N4 model test and it is a good example of this type of NVG.

All digital cameras are sensitive to inferred (IR) wavelengths of light outside our eye’s visual spectrum. Digital NVGs are essentially portable digital video cameras and displays. These Digital NVGs are essentially Gen 1 night vision, only able to see images with the help of active IR illumination (an inferred flashlight).

The N4 is a compact and lightweight Digital NVG unit that has the form factor of a binocular but is in reality a single lens digital camera with individual eyepieces that look at the same display. The second objective lens is actually the IR flashlight which illuminates your subjects in beam that can extend out to over 100yrds. The N4 has a built in rechargeable battery and can take both video and 10MP photos while it is being used as an NVG.

The unit is made of lightweight plastic that has a 1/4″ photo socket so it can be used on a tripod or attached with a GoPro compatible bracket to a head strap and worn over your eyes, handsfree. The unit has a focus controls for the eyepieces to see the internal low-res LCD display and for the digital camera. My unit had a slight defect in the camera focus which limited the distance of sharp focus to 20ft-60ft. GTMedia sent me a replacement unit after I sent them videos of the problem which was mechanical in nature.

In testing I was able to see a man sized figure at a distance of 100yrds but because of the IR illumination, the image was mono-chromatic. The unit is able to see in full color but it’s camera is night very high fidelity and the video footage I was able to get was lackluster; about the same as low-quality security camera footage. The footage I did manage to get felt more like an analog horror game.

The 1x through the unit is more like 5x and is disorienting and makes to walking while wearing it in the dark, awkward and potentially dangerous on rough terrain. The light weight shell makes it easier to wear and travel with but feels fare too fragile to drop. It could do with some silicone armor and a stronger GoPro bracket connection or an adapter for NVG J-arm.

The unit did work and could allow me to identify animals or intruders at night but it is not a combat optic. Because Gen 1 NVGs require in IR light source, these can be easily seen at a great distance by Gen 2 or Gen 3 NVGs and identified. In a SHTF situation, the N4 is outclassed but it is better than not having night vision. There is an old saying, “In the land of the blind, the one-eyed man is the king.”

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