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ENSTER - Security Camera Manufacturer With Production& Over 15 Years Export Experience
In today's security field, the choice of cameras is crucial, and determining the magnification of Motorized zoom lenses is a key link. Today, let's delve into how to choose the magnification of a camera lens to help everyone make a wise decision among numerous options.
First of all, we need to make it clear that those cameras marked with high magnifications on the market, such as 300 times, 200 times, 50 times, etc., often confuse consumers. These markings often do not clearly distinguish between optical lens magnification and digital zoom magnification, which is indeed confusing to a certain extent. For a camera, the optical lens magnification is the most important consideration.
For example,
A camera with a 200x zoom lens should clearly indicate its optical magnification and digital zoom magnification. Generally, if the optical magnification is 20 times and the digital zoom magnification is 10 times, then the total magnification is 20 × 10 = 200 times.
A50x Zoom lens, if its maximum focal length is 50 millimeters and the minimum focal length is 5 millimeters, then by calculating 50 ÷ 5 = 10, we can know that this is a 10x optical zoom lens.
The optical lens magnification directly affects image quality and actual usage effects. A high-magnification optical lens can achieve relatively clear long-distance observation without significant loss of image quality. For example, in places that require long-distance monitoring, such as around large factories or on expressways, cameras with higher optical magnifications can accurately capture more distant details, providing strong support for safety assurance and management.
So, how do we determine the optical lens magnification that suits our needs? This needs to be considered in combination with the actual usage scenario. For small-scale specific area monitoring, such as a corner of a store or a local area of an office, a high optical magnification may not be needed. A lower-magnification lens is already sufficient to meet the clear observation needs of these small-scale scenes.
For large-scale scenes that require long-distance observation, such as large warehouses, port docks, etc., a higher-magnification optical lens is needed. Only in this way can we see important information such as the stacking situation of goods and the movement trajectories of personnel at a relatively long distance.
In addition to the optical lens magnification, we cannot ignore the role of digital zoom magnification. After determining the appropriate optical lens magnification, we can set the digital zoom magnification in combination with the resolution of the camera and monitor. If the monitor is 1080P and the camera is 4K resolution, then an appropriate digital zoom can be set according to the actual situation, such as 4 times digital zoom. This can give full play to the high-resolution advantage of the camera and present a relatively clear enlarged image on the monitor. Similarly, a 4-million-pixel camera is close to 2K resolution, and a two times digital zoom can be set relative to a 1080P monitor.
For example, the 15x combined magnification zoom PTZ camera with 6 million pixels produced by ENSTER company. This camera has a 5x (2.7 - 13.5mm) optical magnification lens and three times digital zoom. It is displayed on a 1080p monitor. Such a configuration is very reasonable.
Finally, when choosing the camera lens magnification, we also need to consider multiple factors such as the purpose of monitoring, distance, and image quality requirements. Only by comprehensively considering these factors can we choose the most suitable camera for ourselves and achieve efficient and high-quality monitoring effects.
Hope this article can help everyone be more handy when choosing the camera lens magnification and provide useful references for everyone's safety assurance and image recording. Let's use the appropriate camera lens magnification to capture every wonderful moment in life.
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