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The relationship between focal length and monitor distance
Author: Sunell - Intelligent Video Total Solution Provider Time: 2018-10-09 Visits: 457 -
please refer to the table as below
Focal Length
Field of view (e.g)
Recommend monitor distance
2.8mm
98.5°
About 3 meters
4mm
79°
About 6 meters
6mm
49°
About 10 meters
8mm
40°
About 20 meters
12mm
23°
About 30 meters
16mm
19.2°
About 50 meters
25mm
12.4°
About 80 meters
※Field of view angle varies from different model, refer to the official website for accurate parameter
Vic