OUR FOCUS IS YOUR PROFIT
Cortex Security Solutions
OUR FOCUS IS YOUR PROFIT | Cortex Security Solutions
History:
Lens Focal Length
Distance between camera and monitored zone
5-feet
10-feet
Millimeters
- 2.45
- 2.80
- 2.97
- 3.60
- 3.70
- 4.0
- 4.30
- 5.0
- 6.0
- 8.0
- 12.0
- 16.0
- 25.0
- 50.0
Horz area
- 17.3'
- 14'
- 12.3'
- 7.5'
- 7.3'
- 6.6'
- 6.1'
- 4.7'
- 3.8'
- 2.9'
- 1.9'
- 1.4'
- 1'
- 0.4'
Vert area
- 13'
- 10.5'
- 9.6'
- 5.7'
- 5.5'
- 5'
- 4.6'
- 3.5'
- 2.9'
- 2.2'
- 1.5'
- 1.1'
- 0.7'
- 0.3'
Horz area
- 34.6'
- 28'
- 24.6'
- 15'
- 14.6'
- 13.2'
- 12.2'
- 9.4'
- 7.6'
- 5.8'
- 3.8'
- 2.8'
- 2'
- 0.8'
Vert area
- 26'
- 21'
- 19.2'
- 11.4'
- 11'
- 10
- 9.2'
- 7'
- 5.8'
- 4.4'
- 2.8'
- 2.2'
- 1.4'
- 0.6'
15-feet
25-feet
Millimeters
- 2.45
- 2.80
- 2.97
- 3.60
- 3.70
- 4.0
- 4.30
- 5.0
- 6.0
- 8.0
- 12.0
- 16.0
- 25.0
- 50.0
Horz area
- 51'
- 42'
- 36.9'
- 22.5'
- 21.9'
- 19.8'
- 18.3'
- 14.1'
- 11.4'
- 8.7'
- 5.7'
- 4.2'
- 3'
- 1.2'
Vert area
- 39'
- 31.5'
- 28.8'
- 17.1'
- 16.5'
- 15'
- 13.8'
- 10.5'
- 8.7'
- 6.6'
- 4.5'
- 3.3'
- 2.1'
- 0.9'
Horz area
- 86.5'
- 70'
- 61.5'
- 37.5'
- 36.5'
- 33'
- 30.5'
- 23.5'
- 19'
- 14.5'
- 9.5'
- 7'
- 5'
- 2'
Vert area
- 65'
- 52.5'
- 48'
- 28.5'
- 27.5'
- 25
- 23'
- 17.5'
- 14.5'
- 11'
- 7.5'
- 5.5'
- 3.5'
- 1.5'
50-feet
100-feet
Millimeters
- 2.45
- 2.80
- 2.97
- 3.60
- 3.70
- 4.0
- 4.30
- 5.0
- 6.0
- 8.0
- 12.0
- 16.0
- 25.0
- 50.0
Horz area
- 173'
- 140'
- 123'
- 75'
- 73'
- 66'
- 61'
- 47'
- 38'
- 29'
- 19'
- 14'
- 10'
- 4'
Vert area
- 130'
- 105'
- 96'
- 57'
- 55'
- 50'
- 46'
- 35'
- 29'
- 22'
- 15'
- 11'
- 7'
- 3'
Horz area
- 346'
- 280'
- 246'
- 150'
- 146'
- 132'
- 122'
- 94'
- 76'
- 58'
- 38'
- 28'
- 20'
- 8'
Vert area
- 260'
- 210'
- 192'
- 114'
- 110'
- 100
- 92'
- 70'
- 58'
- 44'
- 28'
- 22'
- 14'
- 6'
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'
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Last modified: Nov 2018