eView Technologies’ core strength is in video surveillance and security management and is making increasingly public moves to carve a legitimate place for itself in the mainstream digital video surveillance security industry. As an OEM and a contract manufacturer of video surveillance security products and cameras (CCTV), eView Technologies’ Head Quarters is conveniently located in the Metropolitan Washington DC area, with assembly/manufacturing operations in Fairfax Virginia, Nashville Tennessee, Tokyo and Hong Kong.
Additionally eView Technologies offering includes design, manufacturing and/or assembly of security products including security cameras, security power panels and security servers for clients across industries around the world. Due to our well published superior quality, technology and outstanding services, eView Technologies has been the choice for forward-thinking security professionals all over the world for their security needs.
With fast prototype, timely delivery, and outstanding services from design to completion, we provide a comprehensive suite of security cameras, and many logical, practical and business options for our clientele to select best suited cameras for their application.
Our OEM operations adhere and are certified for ISO 9001 certification.
Cameras
Cameras come in different shapes and sizes which should not effect the picture quality. When selecting cameras, the shape should be evaluated in terms of cosmetics, ease of installation and camera location. Two cameras in different locations and similar components should not perform differently if implemented properly.
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Dome cameras are usually the best choices due to the following reasons:
- Dome cameras cannot be easily manipulated when within reach
- Dome cameras install easily in drop ceilings
- The direction in which the dome cameras are pointing is hidden since dome cameras have covered lenses
- Dome cameras can accommodate infra red for night vision
While dome cameras are the preferred choice among cameras there are limitations to their usage. Since dome cameras are typically small, there is size limitation for their lenses. When long distance visibility is required, a 50mm or greater focal length lens is required. Long lenses would not fit inside a standard dome camera.
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Box cameras are typically the preferred choice under the following conditions:
- When camera needs to be mounted to a wall or a vertical area
- When long distance viewing is needed requiring long lenses which will not fit in dome or bullet cameras
- When extreme low light conditions are not a consideration
If the box camera is within reach, the camera needs to be inserted in a protective enclosure. Additionally when the lighting is extremely low, the box cameras need to be infra red sensitive and placed inside enclosures that have built-in infra-red illuminators,(utilizing the infra-red illuminators from an external source).
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Infra-red cameras are preferably used under the following conditions:
- When there are extreme low light conditions
- When the camera is out of reach
The distances infra-red cameras can see are based upon their illumination capacity. Infra-red cameras have LED’s, which cast out into the darkness.(1 foot for each LED). Just because one camera has more LED's than another does not mean it can cover a longer distance. There are different strengths in the LED's.
There are some newer LED’s which offer more power but are not used commonly. One thing to note is that infrared LED's have limited life expectancy since they are illuminating and burn out over time.
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Bullet cameras are more commonly used under the following conditions:
- Used when we need the camera to be inconspicuous but not covert
- When the camera is out of rich
- When extreme low light conditions are not a consideration
- When cameras are needed to cover shorter to middle distances
As bullet cameras are small the type of internal boards and lens is limited. Accordingly, the picture quality of the bullet cameras cannot compare with other more traditional cameras, which can have double layer boards and camera function controls.
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Covert cameras are used when cameras are not meant to be seen and are disguised in all forms and shapes such as wall clock, sprinkler head or smoke detector.
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Wireless cameras are used when connecting to a digital video recorder is not practical
Wireless only pertains to the video signal, you still need a method to power the camera. Wireless cameras can be found in most styles. For the most part wireless cameras require a line-of-sight to function properly. Video signal quality, interference and signal availability are the main drawbacks for implementation of wireless cameras. Distances will vary depending upon the strength of the transmitter and receiver, and other devices that are in the same spectrum. There are very costly external wireless transmitters and receivers that can attach to any standard camera and make them wireless.
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| Pan Tilt Zoom (PTZ) Cameras |
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PTZ cameras are commonly used under the following circumstances:
- When live control of the camera is needed to adjust the manual pan, tilt or zoom
- When a camera is used to tour the premises
- When different angles need to be viewed using a single camera
Depending on capability and function, PTZ cameras can cost about 5 to 10 times more than fixed cameras. PTZ cameras can though perform various functions not possible with a fixed camera. You can control a PTZ camera and zoom in optically (up to 36 times) and digitally (up to 12 times) giving zoom capabilities. The PTZ cameras have intelligence and can be programmed to perform pre-defined tours and upon the event of an alarm, they can switch to a specified location. An operator can override and take control of the camera at any time.
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