Things To Consider In Choosing Day/Night Cameras For Your video Camera Surveillance Needs
A Short Summary
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.
On the contrary, black and white video camera surveillance setups don’t have an IR cut filter because they are intended to interpret color. Without the filter, B…W CCTV camera options can utilize other light frequencies like infrared. Infrared which come from a numerous sources, including the sun, fluorescent lights, incandescent lights and especially infrared illuminators. Consequently ,B…W surveillance cameras operates notably better in low light and some can see at light levels 0.0001 lux which is almost complete darkness. Other advantage of B…W video surveillance cameras is the ability to illuminate an area with IR. It provides the camera with sufficient lighting but gives natural darkness which can help in suspects’ arrest.
The Advantages of Day/Night Cameras
Day/Night security cameras offer the unique advantages of both color and black and white CCTV camera setups. D/N video security cameras work just like color cameras during the day and switch to a B…W mode at night, using a removable IR cut filter. As daylight fades, day/night cameras sense the lower light levels and mechanically remove the IR cut filter, instantly 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.
Whatever type of day/night camera you pick, It is suggested to take into account of the following points to make sure you get the greatest answer for your security needs:
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 – When purchasing fixed security day/night camera that needs a C- or CS-mount lens, just be certain to find a CCTV camera lens that is compatible with Day/Night Cameras for apply with infrared light. IR ready camera lenses allocate for the proper passage of IR light, the complete utilization of the camera’s day/night capabilities, and also, lower light performance.
3. S/N Ratio – There are many surveillance cameras in the market place with low lux ratings, but this does not always mean they will produce a good picture in low light. To ensure you get both, select a security camera with a signal-to-noise ratio of 48dB or higher
Video camera surveillance can be an efficient tool and is utilized in many environments. Employing video surveillance systems can have many very good results.
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