Night vision security cameras are very helpful in providing around-the-clock surveillance for homes and businesses. Their ability to see in the dark is thanks to advanced IR (infrared) surveillance technology. However, when shopping for a night vision camera, simple wording such as “infrared (IR) illumination” and “night vision” is not enough. You want to look for specific features to ensure you are choosing the best night vision security cameras.
Three important features to look for include:
The quality of your night vision security camera will be determined by these features.
IR Cut Filter
Night vision security cameras with infrared cut-off filters improve image clarity (especially in daytime) and can prevent out of focus images. The way the filter works is quite simple, yet makes all the different in video and image quality.
The IR cut filter is physically moved over the lens when daylight (white light) is detected to block out the IR light (that would affect the image quality). When the light levels drop to the point where night vision is necessary, the camera will move the lens out of the way. This “filter switch” allows the camera to pick up the same colors as the human eye to record natural looking images and results in better images overall. Without these filters, there’s no way to prevent full-spectrum light, thus, daytime images would suffer from distortion and possible loss of focus.
Powerful Illumination (IR LEDs) Beam
Simply put – the more powerful the illumination, the better the night vision will be. For example, if you are looking for outdoor cameras, you want cameras that produce something in the neighborhood of 100 ft. of IR illumination.
Before discussing IR illuminators, the Field of View (FOV) should be understood. If you think of it in terms of binoculars, the field of view is everything you see when looking into them. What you cannot see is outside of the field of view. Often times, the infrared illuminators in a night vision security camera don’t match its FOV, thus the IR-beam is not illuminating the total area captured by the lens.
For the night vision cameras with an IR illuminator narrower than the FOV, you get a bright area in the middle of the image with the darkness growing as you get further from the center (ex. the spotlight effect). This is problematic as it makes it nearly impossible to identify areas outside of the center of the image. Finding a night vision camera with an IR illuminator that is equal to the FOV may cost more, but is well worth it.
Although seeking out specifications and ensuring that night vision cameras meet your expectations and requirements seems like a tedious task, it is well worth the security and peace of mind when it comes down to it.
Need help choosing a night vision security camera? Contact us at 888-203-6294 to discuss your options. You may also browse our stock of IR night vision cameras and other surveillance equipment online at SecurityCamExpert.com. For the latest updates, connect with us on Facebook, Google+, Twitter, LinkedIn, and Pinterest.
Implementing an advanced, top quality CCTV surveillance system can greatly improve your overall security. However, if not installed and maintained properly, it could ultimately be useless. In order to preserve its effectiveness, be sure your surveillance system is professionally installed and that you routinely complete maintenance checks.
Employ this video surveillance maintenance checklist to keep your system functioning optimally.
A dirty camera lens will compromise your video footage. Smudges, dust, water-spots and other undesirable elements can occur. To avoid this, check both indoor and outdoor camera lenses to ensure they are clean. Ideally, to clean your camera lenses, you should start with a compressed air can to blow the lens and remove loose debris, and then use a microfiber brush to gently wipe the lenses.
When installing outdoor cameras, be sure there are no obstructions. If you must install an outdoor camera near trees or other greenery, be sure to trim the landscape to keep the field of view clear.
Security camera housing is meant to protect your camera from rain, wind, and other elements, but sometimes it can be compromised. To ensure that the housing is functioning properly, open it to check for signs of water, dirt, and condensation. If you see any of these, it may be time to invest in new, better camera enclosures.
Be sure to monitor your connectors for any signs of corrosion. If you find that any are corroded, replace them immediately as this can cause the equipment to short out.
As you check the connectors for corrosion, you want to also make sure that all cable connectors are receiving power and watch for signs of wear and tear. If you find any exposed wire, replace it immediately.
To ensure that there is no loss of power, check your power supplies and UPS (be sure batteries are fully charged and no warning lights are on). You may also want to invest in a voltmeter to guarantee that your surveillance cameras are receiving their recommended power requirements.
As with any dormant device, your DVR may begin collecting dust. You should wipe this clean with a microfiber cloth (or use a blower to dust the crevices) regularly to prevent any negative effect on your DVR’s performance.
Depending on your hard drive capacity, you will need to periodically back up and delete your video footage once it fills up.
Set a weekly reminder to check on your camera recordings to make sure they are working. It is better to take preventative measures so that you don’t miss any important footage.
Make sure your security system is providing optimal surveillance by checking camera locations and focus. If there are any areas that are going unmonitored, you may consider adding additional cameras.
Be sure that your cameras are receiving adequate lighting to produce clear images for easy identification. Additionally, make sure cameras are not being washed out by sunlight during the day.
As mentioned, you want your camera to have an unobstructed view. Should a hidden camera become covered by a banner or poster, be sure to remove and/or relocate them.
Check the date and time on a daily basis for accuracy. A brief power outage may require the date and time to be set again.
Visible surveillance signage can act as a deterrent on its own. It lets potential intruders know that you are employing a video surveillance system and may discourage them from targeting your property.
Many service level agreements to maintain your surveillance system are available. They may include things like inspection, loaner gear, emergency response, extended warranty coverage, and more.
If you need help choosing the CCTV surveillance system and security cameras that will best suit your needs, please feel free to contact us at 888-203-6294 or visit SecurityCamExpert.com today!
Video surveillance can be an excellent security measure in various environments. While retail stores and remote ATMs are commonplace locations for video surveillance, its benefits can also be seen when applied to a wide range of businesses and homes. Here are a few examples of these video surveillance benefits and why you should consider investing in it (if you don’t already).
For a great selection of CCTV video surveillance packages, security cameras, and other security solutions, please visit SecurityCamExpert.com. To schedule a site survey, request a free quote, or inquire about our installation services, please call us 888-203-6294.
When shopping for a security system for your home or business, it may be easy to focus on the specific features of the security cameras. However, much attention should be paid to video surveillance storage as well. DVRs (digital video recorders) are an integral part to the overall surveillance system. Here are some of the features and specifications of DVRs that you should pay close attention to.
A frame rate is a unit of measure denoting the number of frames recorded in each second by a DVR in a specific resolution. Calculations should be made based on the real-time frame rate of about 30 frames per second (FPS). For example, in order to record real-time video on a standard 16-channel system, you would need a DVR that has 480 FPS.
Remember that sellers may claim real-time images as the units display live video at about 30 FPS on each channel, but this needs to be assessed based on the recorded video footage (not the live video). A basic unit may record videos at less than 30 FPS while a top-end unit may deliver 30 FPS on each channel.
Resolution is the size of the image displayed or recorded. The most popular resolution is CIF – 360×240, and the highest is specified as D1 – 720×480. This is an important specification to consider as larger recorded images afford you additional details for review. For example, 4CIF images can feature views detailed four times as much as a base CIF image. You can find a variety of DVRs boasting anywhere from CIF to D1 resolutions.
When the video is transferred to the DVR for storage, it is first compressed to save space and to make Internet viewing fluid. Compression standards can vary from basic to nearly no compression protocols (ex. MJPEG or wavelet) to the top-end compression methods (ex. MPEG4). Currently, the highest compression standards are H.264 (which is 40% more efficient than previous versions).
While compression methods may vary in DVRs, hybrid DVRs are available. These are capable of using a combination of compression methods, and can also be used to do compressions separately (Internet streaming vs. recording).
You will need to know how much data your DVR can hold. Presently, baseline DVRs may allow one or two hard drives only, while more advanced models now offer 6, 8, or more internal hard drives based on user requirements.
Popular DVRs also offer redundant storage (RAID) configuration and FTP uploads. The FTP uploads feature allows backup of video for the DVR at an off-premise FTP server. This helps to avoid any possibility of loss in the case of a local system crash or a DVR robbery.
Audio can sometimes be an important addition to video footage. Some DVRs may accommodate synced audio and video, with lower-end versions having one to four channels and higher-end options offering up to 16 channels. Be sure to review the laws and legalities in regards to audio recording.
There can be a wide variety of video output, from BNC to VGA to HDMI. If you have a mix of these, you may need to invest in quality converters to ensure proper connections and performance.
Network IP surveillance systems allow users to access video footage via the Internet from virtually anywhere. Advanced systems even allow viewing more than one DVR at a time. These DVRs can boast specialized features such as camera groupings, e-mapping, different levels of user privileges, and more.
If you need assistance in choosing the right DVR and security cameras for you, please feel free to contact us 888-203-6294 or browse our vast selection online at SecurityCamExpert.com. You can also connect with us on Facebook, Google+, Twitter, LinkedIn, and Pinterest.