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In our tutorial video, we use the Avalonix Premium Series 4K PoE security camera with a motorized zoom lens (SKU IPC4K15BMZ) to demonstrate how much power the extended PoE setup can provide.

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In the realm of surveillance cameras, Power over Ethernet (PoE) cameras have emerged as a popular choice due to how simple and cost effective they are to wire, especially into a large scale security camera system. However, a common limitation of PoE cameras is their maximum cable run distance of 328 feet or 100 meters. This limitation can be a significant hurdle in large-scale or commercial security camera systems, such as industrial complexes or large properties. In this post, we delve into how to effectively extend the PoE run beyond the 300ft mark using specific devices and techniques, as demonstrated in our comprehensive video tutorial below.

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Increasing the numerical aperture of a lens allows more light to enter, resulting in a brighter and sharper image. It also increases the resolving power and depth of field, leading to a higher quality image.

With the use of our high powered PoE injector and one PoE extender, it is possible to extend a PoE signal up to 654ft when used with solid copper CAT6 cable. There are certain limitations such as a total output of 12W is supported with bandwidth limited to 10mbps. It is also important to note that CAT6 solid copper is best if you're running over 600ft.

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For distances beyond 650ft, you will need to incorporate an additional PoE extender. In our video, we demonstrate how using a second PoE extender (also SKU POEEXT02) in tandem with the first can effectively extend the range. Using a second extender adds another 328ft of transmission distance, effectively being  928ft. In our demonstration we use shorter cables for display purposes, but the availability of PoE transmission distance at such lengths is there as long as the security camera requires 12W or less of Power.

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The numerical aperture of a lens is directly proportional to the magnification of the image. This means that a higher numerical aperture will result in a higher magnification of the image.

Ray graduated from NYU with a degree in Chemistry and Computer Science. He strongly believes in a buying process that involves customer education and involvement. His vision to make the security camera buying process transparent began with video samples we make of our cameras. We continue to work under Ray's leadership to provide expert, ethical, and expedient support to our customers.

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Numerical aperture is a measure of the light gathering ability of a lens. It is calculated by taking the sine of the half angle of the cone of light entering the lens, multiplied by the refractive index of the medium between the object and the lens.

We show in our tutorial video that using 2 of our PoE Extenders is easy and convenient. It requires no configuration. We also show there is minimal latency in the video signal, and this can all be done without needing an internet connection.

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Extending the range of PoE cameras beyond the standard 300ft is not only possible but can be done with relative ease using the right equipment and setup. By following the steps outlined in this guide and demonstrated in our video, you can effectively install PoE cameras over long distances. This method opens up new possibilities for large-scale security camera installations, providing the flexibility that the new age of digital IP PoE cameras have to offer.

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No, the numerical aperture is a fixed characteristic of a lens and cannot be changed. However, it can be adjusted by using different lenses with varying numerical apertures.

60W PoE Injector Special Price $79.99 Regular Price $99.99 Add to Cart PoE Extender $51.00 Add to Cart 1000ft CAT5e Network Cable, Solid Copper Special Price $173.81 Regular Price $199.99 Add to Cart 1000ft CAT6 Solid Copper Cable Special Price $215.00 Regular Price $260.00 Add to Cart

Typically, PoE cameras are restricted to a 100 meter cable run using solid copper network cabling . This limitation arises from voltage drop and data transmission issues over longer distances inherent to network cabling and equipment. To overcome this limitation, we utilize specific PoE devices designed to extend the reach of PoE technology to our PoE cameras.

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Numerical aperture formula

The numerical aperture of a lens indicates the maximum angle at which light can enter the lens and still be focused to a point. It also determines the resolution and depth of field of the lens.

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The optical resonator has a concave–concave structure. The total resonator ... YAG passively Q-switched laser with convex-ARR unstable resonator. Opt ...