The difference between 3.6mm and 4mm small lenses in the camera is as follows:
1. Different uses
The small lens of 3.6mm surveillance camera is suitable for indoor shooting.
The small lens of 4mm surveillance camera is suitable for high-altitude shooting.
2. Different visual field angles
The field of view angle of the small lens of the 3.6mm surveillance camera is 70 °.
The small lens of 4mm surveillance camera has a field of view angle of 69.9 °.
3. Different irradiation distance
The illumination distance of the small lens of the 3.6mm surveillance camera is 0-5m.
The exposure distance of small lens of 4mm surveillance camera is 10m.
In smart cameras,
you can use [SECULENS Series 811 3MP & 5MP] lenses with good price and quality!
The effect is bright. It is the most popular M12 small lens on the market now!
Buy 811 lens, please look for the seculens logo quality goods!
2022-03-03 11:12:06
型号 5038 ✨焦距 (EFL)：6.00 mm最大光圈 (F/NO)：2.4视场角 (FOV)：56°（水平）、50°（垂直）、29°（对角线）畸变 (Distortion)：<-0.5%光学结构 (Structure)：5G螺纹尺寸 (Thread size)：M12*P0.5光学总长 (TTL)：14 mm直径 (Diameter)：14 mm像素分辨率 (Resolution)：5MP最大像圆 (Max image circle)：7 mm适配传
型号 5019 ✨焦距 (EFL)：5.00 mm最大光圈 (F/NO)：2.4视场角 (FOV)：65°（水平）、52°（垂直）、39°（对角线）畸变 (Distortion)：<-0.94%光学结构 (Structure)：2G3P螺纹尺寸 (Thread size)：M12*0.5P光学总长 (TTL)：14 mm直径 (Diameter)：φ14 mm像素分辨率 (Resolution)：5MP最大像圆 (Max image circle)：6.6
型号 3921 ✨焦距 (EFL)：4.50 mm最大光圈 (F/NO)：3.5视场角 (FOV)：77°（水平）、62°（垂直）、46°（对角线）畸变 (Distortion)：<0.5%光学结构 (Structure)：3G2P螺纹尺寸 (Thread size)：M12*0.5P光学总长 (TTL)：21.5 mm直径 (Diameter)：Φ14 mm像素分辨率 (Resolution)：12MP最大像圆 (Max image circle)：7.2
CDS Wire：通过光敏元件感知环境亮度，为设备提供光强数据，支持自动模式切换或亮度调节。Sensing environmental brightness through photosensitive components, providing light intensity data for devices, and supporting automatic mode switching or brightness adjustment.IR-CUT Wire：控制红外截止滤镜的机械切换
Fisheye lens 1.85mm FT1085 12MP
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Car Lens 2.6mm SECU8204
Darklight Lens 10207-8MP+H243+IR0316 4mm 1/1.8"
Darklight Lens 10206-8MP+H243+IR0316 2.8mm 1/1.8"
