Different application scenarios may have different requirements for surveillance camera lenses. You must consider carefully when choosing a lens for your home surveillance camera. As a lenses supplier, I'd like to share with you about the considerations when selecting the appropriate lenses.
The focal length of the camera lens is 2.8mm/4mm/6mm/8mm/12mm. Each product series can choose the focal length of the lens to meet the shooting needs of various indoor and outdoor environments. The focal length of the lens is different, the viewing angle and range that can be monitored will also be different. Generally speaking, the larger the focal length, the smaller the angle of view, and the longer the monitoring distance
When considering the lens index, it is necessary to comprehensively consider the position and distance of the monitoring target and the image effect of the monitoring target on the monitor to select the most suitable focal length lens. For example, production line monitoring generally requires monitoring of relatively close objects, and requires high definition. In this case, the effect of a fixed focus lens is generally better than that of a zoom, so a short focal length fixed focus lens is usually selected. Such as 2.8mm, 4mm, 6mm, 8mm, etc.
Putting it into actual use scenes, 2.8mm focal length is suitable for elevators, stairs and other relatively small environments, 4mm is suitable for meeting rooms, shops and larger scenes, etc., and parking lots, factory workshops, courtyards and other more open places can be used. Choose a lens above 6mm; the specific choice can be determined according to needs.
Divided into manual zoom and electric zoom. Manual zoom, when we need to install, according to the monitoring range, manually adjust to the appropriate focus. The electric zoom can be remotely controlled and adjusted through the client software at the back end to adjust the lens Focal Length.
The focal lengths of common zoom lenses mainly include 2.8-12mm, 2.7-13.5mm, 3.5-11mm, 5-50mm, etc. For lenses with greater zoom capabilities, we can choose lenses with built-in zoom capabilities such as 10 times, 12 times, 18 times, 20 times, 22 times, 30 times, and 60 times.
If you want the night monitoring to be in place, you have to use a camera with good night vision. The night vision distance is mainly determined by the number of infrared lights. The night vision distance of a single lamp is 30 meters, and the night vision distance of a double lamp is 50 meters.
Girron has the different lenses for different uses, and if you want to learn more about our products, please contact us.
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