When choosing the resolution you should think about what tasks you will use the camera for. If we have more pixels in the image, then less light will fall on the camera - all this affects the quality of the received image. In addition, the higher the resolution of the image is, the lower the sensitivity of the sensor. Higher resolution contributes not only to higher costs of the device, but also to higher bandwidth required for the network, computing power of the DVR or a larger external hard drive with memory. Today, unjustified high resolution is fashionable, but it is often not cost-effective. The aperture of a lens with an F/1.2 aperture is larger than that of an F/2.0 aperture - in this example, an F/1.2 aperture will let more light into the sensor. The smaller the value, the more light will enter the sensor. In summary, the more zeros you get after the decimal point, the more sensitive the sensor and the image quality of the device.Īperture is the relative aperture that allows light to pass through it. This parameter shows the minimum amount of light needed to form an image (0.1 ~ 0.9 lux, 0.01 ~ 0.009 lux). Lux itself is the derivative of one lumen (meter of light flux) per square meter. How does it work? The quality of the image displayed by the camera depends on the sensitivity of the sensor. It takes the image from the lens and converts it into a digital stream. This is the primary thing to determine the number of cameras we require and their mounting location.Īnother important parameter is the matrix. One of the most important parameters when choosing an IP camera is undoubtedly the lens field. Before we get into the actual review of Ezviz cameras, we'll look at the most important features when choosing a camera for your home.

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