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Video cameras come all shapes and sizes and are capable of transmitting to different distances. The transmission range of a Wireless Camera is usually rated by use the Line-of-Sight (LOS). Standard Wireless Video Cameras have a range of about 700 feet LOS. The signal can be transmitted through most solid objects including glass, plastic, wood, fiberglass, and some metals, but the signal is attenuated. So the actual transmission range depends on the number and type of objects you are transmitting through, such as brick walls, concrete walls, trees, etc. An ordinary 700 ft. LOS Covert Camera can typically transmit signal through about 6 interior walls with ranges up to 300 feet and is designed to work comfortably in a building up to 6,000 square foot (home or office).
1. The image will be still for several seconds wherever the date changes.
2. The images are played back smoothly if the scenes were recorded on the same date.
A smaller lens value will show a shorter viewing distance and a wide field of view. A larger lens value will allow for a longer viewing distance but a narrower field of view.
Refers to the size of the imaging sensor. Common formats are 1/4", 1/2", 1/3", 2/3", and 1". The size of the sensor directly affects the field of view obtained. When using the same size lens on different format sensors, different viewing areas are obtained. For example, using a 6 mm lens on a 1/3" sensor will give you a 37 degree field of view. Using the same lens on a 1/2" sensor will increase the field of view to 56 degrees and 74 degrees on a 2/3" sensor. It is important to make sure you have a lens that was designed for at least the size of your sensor. For instance, you can use a 1" format sensor on a 1/3" camera, but you cannot use a 1/3" lens on a 1" camera. If you use a lens designed for a smaller format camera, the image will be vignetted. Also, by using a lens designed for a larger format sensor, the field of view will be greater than what is specified.
