Refer to the following chart for determining field of view when
considering any C-mount or CS-mount lens. The
3.6mm lens is highlighted for comparison since that is the most common fixed
focus lens.
Lens Focal
Length
Distance
between camera and monitored zone
5-feet
10-feet
15-feet
25-feet
50-feet
100-feet
Millimeters
Horz area
Vert area
Horz area
Vert area
Horz area
Vert area
Horz area
Vert area
Horz area
Vert area
Horz area
Vert area
2.45
17.3'
13'
34.6'
26'
51.9'
39'
86.5'
65'
173'
130'
346'
260'
2.80
14'
10.5'
28'
21'
42'
31.5'
70'
52.5'
140'
105'
280'
210'
2.97
12.3'
9.6'
24.6'
19.2'
36.9'
28.8'
61.5'
48'
123'
96'
246'
192'
3.60
7.5'
5.7'
15'
11.4'
22.5'
17.1'
37.5'
28.5'
75'
57'
150'
114'
3.70
7.3'
5.5'
14.6'
11'
21.9'
16.5'
36.5'
27.5'
73'
55'
146'
110'
4.0
6.6'
5'
13.2'
10'
19.8'
15'
33'
25'
66'
50'
132'
100'
4.30
6.1'
4.6'
12.2'
9.2'
18.3'
13.8'
30.5'
23'
61'
46'
122'
92'
5.0
4.7'
3.5'
9.4'
7'
14.1'
10.5'
23.5'
17.5'
47'
35'
94'
70'
6.0
3.8'
2.9'
7.6'
5.8'
11.4'
8.7'
19'
14.5'
38'
29'
76'
58'
8.0
2.9'
2.2'
5.8'
4.4'
8.7'
6.6'
14.5'
11'
29'
22'
58'
44'
12.0
1.9'
1.5'
3.8'
2.8'
5.7'
4.5'
9.5'
7.5'
19'
15'
38'
28'
16.0
1.4'
1.1'
2.8'
2.2'
4.2'
3.3'
7'
5.5'
14'
11'
28'
22'
25.0
1'
0.7'
2'
1.4'
3'
2.1'
5'
3.5'
10'
7'
20'
14'
50.0
0.4'
0.3'
0.8'
0.6'
1.2'
0.9'
2'
1.5'
4'
3'
8'
6'
The
data provided in this document is offered only as a guide. Please verify
specific parameters with ourtechnical
department on a case by case basis. Specification
and/or availability subject to change without notice. A 15% restocking charge may pertain on returned equipment.
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Details section
Responsibility
of the Purchaser