Day and Night Security Cameras – The Best of Both Worlds

A Brief Overview

Color and black and white CCTV security cameras both have their unique strengths for your video camera surveillance needs. Color security cameras have the obvious benefit of providing the detail of color. Being able to record the color of a suspect’s skin tone, clothing, or vehicle is beyond important – it can truly make the difference between solving the crime and the bad guy going free. In order for color security cameras to accurately produce colors, during manufacturing an IR cut filter is placed over the imager. The cut filter allows the camera to only see light in the visible spectrum (400nm to 750nm). Consequently, color surveillance cameras fall short when it comes to producing usable images in low light scenarios.

Conversely, black and white video camera surveillance setups don’t use an IR cut filter because they do not need to see color. With the absence of this filter, B…W CCTV camera options can make use of other light frequencies – such as infrared – which come from a variety of sources, including the sun, fluorescent lights, incandescent lights and of course… infrared illuminators. As a result, B…W surveillance cameras perform significantly better in low light and some can see at light levels as low as 0.0001 lux (almost complete darkness). An additional benefit of B…W video surveillance cameras seeing in the infrared range is the ability to illuminate an area with IR, providing the camera with ample lighting while leaving the area naturally dark which can aide in the capture of suspects.

More about Day/Night Cameras Can give

Either of the two Day/Night security cameras, color and black and white CCTV camera systems provides lots of distinctive features D/N video security cameras works the similar with color cameras at daytime , and switches to a B…W mode at nighttime employing the not fixed IR cut filter. When darkness comes, day/night cameras sense the lower light levels and involuntarily take out the IR cut filter, immediately switching to a more sensitive black and white mode.

All shapes and sizes of day/night surveillance cameras are offered get the satisfaction you need virtually in every application required. D/N technology is offered in many types such as dome cameras, fixed cameras, and bullet cameras as well as in tiny board cameras .Tiny cameras are very valuable in secret operations which usually happens in any lighting conditions. Lots of day/night CCTV cameras are also offered in built in infrared illumination in which is a good trade.

D/N security cameras are referred as the conventional and most successful is called the true day/night cameras, and uses a detachable mechanical cut filter, as explain above. Though, digital day/night cameras (or electronic day/night cameras) are also offered in the market, which electronically regulate colors daytime, as a substitute of using an infrared filter. With the use of this, digital day/night cameras carryout advantage of true day/night cameras, although at a cheap price.When physical filter is no longer necessary, digital day/night technology can be converted to smaller types factors, such as bullet cameras.

Regardless of the type of day/night camera you choose, I recommend considering the following areas to ensure you get the very best solution for your application:

1. Lux ratings – Unlike traditional cameras, day/night cameras typically have two lux ratings – one for the camera’s color mode, and one for its black and white mode. Understanding both will allow you to draw a true comparison between day/night and more familiar traditional CCTV cameras.

2. Lenses – Be sure to get a CCTV camera lens that is rated for use with infrared light when buying a fixed security day/night camera that needs a C- or CS-mount lens. IR ready camera lenses allocate for the proper passage of IR light, the maximum utilization of the camera’s day/night capabilities, and especially lower light performance.

3. S/N Ratio – Numerous surveillance cameras in the marketplace with low lux ratings, however it does not automatically mean they will produce a high-quality picture in low light. To make sure you get both, choose a security camera with a signal-to-noise ratio of 48dB or higher.

Video camera surveillance can be an effective instrument and is utilized in many environments. Employing video surveillance systems can have many very positive effects.