How to choose a suitable lens？

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How to choose a suitable lens？

2025-11-03

FOV full name is Field of view(the angle view). The imaging width of each camera is fixed. For different focal lengths,the valur of the field of view angle is different,the longer the focal length,the smaller the field of view angle,the shorter the focal length,the larger the filed of view angle.For the field of view range,the longer the focal length,the farther the field of view range is;the shorter the focal length,the shorter the field of view angle.

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HFOV---Horizontal Field of View

VFOV---Vertical Field of View

DFOV---Diagonal Field of View

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The determining factors for the horizontal field of view are the focal length and the width of the imaging area, while the determining factors for the vertical field of view are the focal length and the height of the imaging area; The determining factors of the diagonal field of view are the focal length and the height and width of the imaging area. Assuming the width of the imaging area is W, the height is H, and the focal length is f, the angle calculation is as follows:

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Example: f=35mm,HW=24mm(Vertical)*35mm,Horizontal view is 2atan(35/(235))=53.13

f=4mm with 1/2.7 inch lens,W=5.27,H=3.96,Vertical is 2atan(3.96/(2*4))=52.67

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USB Camera Module

MIPI Camera Module

DVP Camera Module

1080P Camera Module

4K Camera Module

IP Camera Module

ESP32 Camera Module

Raspberry Pi Camera Module

AHD Camera Module

WiFi Camera Module

Starlight Camera Module

K210 K230 K230D Camera Module

NIR Camera Module

Binocular Camera Module

Low Light Camera Module

SPI Camera Module

HDMI Camera Module

How to choose a suitable lens？

How to choose a suitable lens？