CCTV camera lenses Comparison: Pentax, Dahua Technology (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Lens Format inches |
1
|
1/3
|
1/2
|
1/2
|
| Focal Length mm |
25
|
2.7 ~ 9
|
10.5 ~ 42
|
3.7 ~ 16
|
| Iris Type |
Auto Iris
|
Auto Iris
|
DC Iris
|
DC Iris
|
| Lens Mount |
C
|
CS
|
CS
|
CS
|
| F-Stop |
1.4-360
|
--
|
F1.5
|
F1.5
|
| Lens Type |
--
|
Zoom
|
Varifocal
|
Varifocal
|
| Zoom type |
--
|
Manual
|
Manual-physically moves
|
Manual-physically moves
|
| IR Corrected (Aspherical) |
--
|
--
|
✔
|
✔
|
| Direct Drive |
--
|
--
|
✔
|
✔
|
| Minimum Object Distance m |
--
|
--
|
0.3
|
0.5
|
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