Night Vision Binoculars
Night vision binoculars operate by using either an image-intensifier tube (analogue) or an electronic sensor (digital) to amplify the minimal amounts of light present in dark environments to produce a bright image. Monochromatic green or greyscale images are usually produced, however newer models can capture colour images.
When choosing a night vision device (NVD), there are a few specifications you should consider:
- Viewing range – the distance which you can see and distinguish objects. Lower-end NVD’s will typically have a viewing range of around 200m, whereas higher-end models can achieve ranges of up to 500m.
- Analogue night vision – Gen 1 analogue scopes are the most economic but have a limited range (approximately 75m), lower resolution and limited field of view. Gen 2 and 2+ scopes offer performance improvements such as longer range, better image resolution and greater field of view.
- Digital night vision – these models typically produce higher quality images than Gen 1 devices and usually have a video output or SD card to allow video capture.
- IR illumination – increases the brightness of the image it takes.