Dome cameras Comparison: Visionhitech, Bosch (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Chip Inch Size |
1/3
|
1/3
|
1/3
|
1/3
|
| Resolution TVL |
600 TVL
|
540
|
540
|
540
|
| Sensitivity lux |
0.1
|
0.44
|
0.05
|
0.005
|
| Mount Type |
Wall, Ceiling
|
Surface
|
Surface mount
|
--
|
| Voltage |
12 V DC
|
12 V DC / 24 V AC
|
12 V DC / 24 V AC
|
12 V DC / 24 V AC
|
| Focal length |
3.6mm
|
2.6 ~ 6
|
2.8 ~ 10.5
|
3.8 ~ 9.5
|
| Back Light Compensation |
✔
|
✔
|
--
|
--
|
| Auto Gain Control |
✔
|
✔
|
--
|
✔
|
| Electronic Shutter range |
1/60 ~ 1/100,000
|
--
|
1/50 ~ 1/120,000 sec
|
1/50 – 1/120,000 (PAL) 1/60 – 1/120,000 (NTSC)
|
| S/ N (Signal/ Noise) Ratio dB |
>50 dB
|
>50
|
>50
|
> 50
|
| Synchronisation |
Internal
|
Internal, Line-lock
|
--
|
--
|
| Signal Mode |
EIA, CCIR
|
PAL
|
PAL
|
PAL / NTSC
|
| Colour Type |
--
|
Colour
|
True Day / Night
|
True Day / Night
|
| Dome Type |
--
|
Continuous Rotation
|
Variable Focus
|
Variable Focus
|
| Indoor/Outdoor |
--
|
Indoor
|
Outdoor
|
Indoor
|
| Rotation Angleso |
--
|
360 pan, 90 tilt
|
--
|
--
|
| White Balance |
--
|
✔
|
--
|
✔
|
| Built-in IR LED |
--
|
--
|
✔
|
--
|
| Digital (DSP) |
--
|
--
|
--
|
✔
|
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