The need for crisp and clear video images in low-light environments always exists. The data confirms it: when committing crimes like burglary and vehicle theft, criminals definitely prefer to hide under the cover of darkness. So to both prevent and tackle crime, it’s vital to have security cameras that can record quality, discernible footage in a variety of light conditions, especially in near-total darkness.
For years, improvements in sensor technology and algorithms to enhance the image have helped deliver better surveillance in low-light conditions. Besides IR illumination, other availabilities include the addition of visible light in the vicinity of the field of view, the use of image intensifiers, low-light lenses, and thermal cameras. In this blog, we talk you through different types of cameras – including some of the latest Hikvision technologies – to help you understand the workarounds for low-light and pitch-black monitoring.
See in low light
Low light means anything down to 0.002 Lux – that’s the same conditions as a moonless, clear night. Many surveillance cameras built today for low-light performance can deliver usable, high-quality images by applying better optics and advanced sensors. To put it simply, the lens used thereby gets as much light as possible onto the image sensor. In this way, Hikvision has two options.
The first is the Hikvision ColorVu cameras, which is ideal for monitoring at a closer range. With an F1.0 super aperture and an advanced sensor, these intelligent eyes pull in four times the light of a conventional camera, for daylight-like color images in low-light conditions. Should light levels fall to zero, the built-in warm supplemental lighting ensures the camera can still capture vivid color images within up-to 40 meters range.
Watch a video to see how Hikvision ColorVu helps tell true stories.
If you need low-light security monitoring over larger distances, then Hikvision DarkFighter camera range are ideal. Featuring a large-sized progressive scan CMOS sensor and a DarkEye SLA lens with a super large F0.95 aperture, DarkFighter cameras can deliver excellent HD high color images down to 0.002 Lux.