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These views typically involve
observing areas like lobbies, break rooms, courtyards, classrooms, laboratories,
and others. The camera’s lens is usually set to view an area between 20 and 70
feet in width. The table below provides lens recommendations
for this field of view from various camera distances.
|
Camera Distance |
10 Feet |
15 Feet |
20 Feet |
30 Feet |
50 Feet |
|
View Width |
10 Feet |
20 Feet |
30 Feet |
30 Feet |
40 Feet |
|
Lens 1/3" Imager |
4.8 mm |
3.6 mm |
3.2 mm |
4.8 mm |
6.0 mm |
|
Lens 1/4" Imager |
3.2 mm |
2.4 mm |
2.1 mm |
3.2 mm |
4.0 mm |
What are you trying to view?
It is important to have a clear understanding of
what you are trying to view and record. This helps you determine the
best choice for the camera. Try our
Lens Calculator.
How wide an area do you need to view?
To determine the best camera and lens for
the application, focus on your requirement. For example, if this is an
entry way, you want to view clear images of the visitor’s:
-
Activity
-
General build
-
Height in comparison to others or
surroundings
-
Color and type of
clothing
-
General possessions
like purses, backpacks, or brief cases
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