The Importance of Choosing the Right CCTV Lens Type for Your Surveillance Camera
Since the quantity of robberies shows a continuing increase, getting the right CCTV lens type is definitely very important. While searching for a CCTV lens type, anyone can locate fairly easily many lenses of various dimensions that are also split into different categories for example fixed focal auto iris, fixed focal manual iris, high-megapixel, motorized-zoom, varifocal auto iris, varifocal manual iris, discontinued and so forth. Of course, a newbie can easily get confused and have a difficult time in finding the best kind of CCTV camera lens for his surveillance equipment.
This way, prior to trying to find the appropriate CCTV lens type, anyone should know some essential things, such as the method of calculating the focal length and specific field of view. Today, the simplest way to get this done is to use the lens selection wheel which will demonstrate what type of lens you’ll need.
Of course, deciding on the best CCTV lense type is crucial as it can certainly make a big difference between obtaining some useful images and getting some unclear, useless scenes. By doing this, when calculating the lenses you need, you need to consider the CCD and CCTV camera sizes. Knowing both of these elements can assist you to accurately calculate the lens type you’ll need. The most typical size used is the 1/3rd inch sensor, which shows a real horizontal dimension of four.8mm.
After considering this stuff, additionally you need to stabilize the distance towards the area and width from the scene you wish to control. By doing this, to be able to stabilize the correct CCTV lense focal length for any scene that’s situated at about 80 feet away from camera, showing a width of 10 feet, you have to divide the distance to the width. The result (8) should be multiplied with the image size or horizontal dimension (4.8mm), providing you with the focal length for the needed CCTV camera lens.
After finding out how big the lense, you can easily choose a manual or auto focal iris, motorized zoom, varifocal auto, manual, or other lens category. There are also different brands that highlight various prices and qualities. However, whichever type of CCTV lens you select, make certain it is a genuine product and comes with probably the most advantageous conditions of use.
If you are looking for any professional company that provides ones of the best CCTV lenses, you can definitely rely on RSSCCTV. This expert service always supplies probably the most reliable and top quality security systems.
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