A Brief Overview

When it comes to video camera surveillance requirements, color and black and white CCTV security cameras are feasible security options. However, these two have different specialties. If you want to have color features, use color security cameras which is very effective in getting colors of criminals, vehicles or other possessions done during the crime. By getting the color information, it may hasten the flow of investigation. Color security cameras accurately produce colors because on the time of creating, IR cut filter is positioned on top of the imager. This let the cut filter to see only with the visible levels of spectrum. As a result, color surveillance cameras have less capability in creating functional images in low light setting.

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.

Day/night surveillance cameras are available in all shapes and sizes to meet virtually every application need. D/N technology is available in many form factors such as dome cameras, fixed cameras, bullet cameras and even in tiny board cameras – which are especially useful for undercover operations which typically happen in a wide variety of lighting conditions. Many day/night CCTV cameras also offer built in infrared illumination, making a very nice turn-key camera package.

The traditional and most effective D/N security cameras are often referred to as true day/night cameras, and use a removable mechanical cut filter, as described above. However, digital day/night cameras (or electronic day/night cameras) are also available, which electronically adjust colors during the day, instead of using an infrared filter. This allows the digital day/night cameras to deliver similar benefits of true day/night cameras, but at a lower cost. Without the need for a physical filter, digital day/night technology can also be leveraged for smaller form 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 – Choose a security camera with a signal-to-noise ratio of 48dB or higher. Lots of surveillance cameras in the open market with low lux ratings, however this does not assure it will produce a quality picture in low light.

Video camera surveillance can be an competent instrument and is utilized in many industries. Employing video surveillance systems can have many very good effects.

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