|
Approximate Horizontal angles of | ||||
|
Focal Length |
2/3" |
1/2" |
1/3" |
1/4" |
|
2.0mm |
- |
- |
- |
82 |
|
2.8mm |
- |
- |
86 |
57 |
|
4.0mm |
- |
77 |
67 |
47 |
|
4.8mm |
83 |
67 |
57 |
40 |
|
6.0mm |
70 |
56 |
48 |
32 |
|
8.0mm |
56 |
44 |
36 |
25 |
|
12mm |
39 |
30 |
25 |
17 |
|
16mm |
30 |
23 |
17 |
13 |
|
25mm |
18 |
15 |
12 |
8 |
|
50mm |
10 |
7 |
6 |
4 |