Security camera lenses Comparison: American Dynamics, Tamron (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Lens Format inches |
1/3
|
1/2.7
|
1/1.8
|
1/2.7
|
| Focal Length mm |
8.0
|
3 ~ 9
|
15 ~ 50
|
3.0 ~ 9
|
| Iris Type |
Auto Iris
|
--
|
--
|
DC Iris
|
| Lens Mount |
CS
|
--
|
--
|
--
|
| F-Stop |
1.2
|
F/1.3 ~ F2.2
|
F1.4
|
--
|
| Direct Drive |
✔
|
--
|
--
|
--
|
| Angle (Field) of View o |
34.7/25.9
|
--
|
--
|
113.7 x 61.1
|
| Lens Type |
--
|
Zoom
|
Zoom
|
Varifocal
|
| IR Corrected (Aspherical) |
--
|
✔
|
--
|
✔
|
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