QQ

QQ

QQ
中文版   |   English         
Professional Knowledge
Lens selection Guide
Jun 11,2012   
—— Lens selection Guide for cameras with 1/3

 

Lens Focal length (mm)
Horizontal Angle-of -view
Distance from camera 
(1 meters)
Scene width in meters
Distance from camera 
(3 meters)
Scene width in meters
Distance from camera 
(5 meters)
Scene width in meters
Distance from camera 
(10 meters)
Scene width in meters
Distance from camera 
(15 meters)
Scene width in meters
2.5
105
1.92
5.76
9.6
19.2
28.8
3.6
72
1.33
4.0
6.67
13.33
20.0
4.0
62
1.2
3.6
6.0
12.0
18.0
6.0
45
0.8
2.4
4.0
8.0
12.0
8.0
34
0.6
1.8
3.0
6.0
9.0
12
23
0.4
1.2
2.0
4.0
6.0
16
17
0.3
0.9
1.5
3.0
4.5
25
11
0.192
0.576
0.96
1.92
2.88
39
 
0.123
0.369
0.615
1.23
1.846
51
5
0.094
0.282
0.470
0.941
1.412
69
 
0.069
0.208
0.348
0.695
1.043

PREV Sep 14,2012 How to Install and Adjust the CCTV Camera
NEXT Fri 25,2012 How to choose CCTV system
Home  |  About Us  |  Knowledge  |  Product  |  News  |  Feedback  |  Cases  |  Contact Us  |  Web Admin Copyright © Smartmanu,Inc. 
Tel:(086)-0755-26456826 Email:sales@safellow.com 粤ICP备12000687号