Dome cameras Comparison: Bosch, Visionhitech (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Chip Inch Size |
1/4
|
1/3
|
1/3
|
1/3
|
| Colour Type |
True Day / Night
|
Colour / Monochrome
|
Colour / Monochrome
|
Colour / Monochrome
|
| Resolution TVL |
470
|
650
|
650
|
650
|
| Dome Type |
PTZ
|
Static
|
Variable focus
|
Variable Focus
|
| Sensitivity lux |
0.01
|
0.1
|
0.1
|
0.1
|
| Pan Speed o/ sec |
6 ~ 90
|
--
|
--
|
--
|
| Tilt Speed o/ sec |
0.2 ~ 90
|
--
|
--
|
--
|
| Indoor/Outdoor |
Outdoor
|
Indoor
|
Indoor
|
Indoor
|
| Voltage |
18 V AC
|
12 VDC, 24 VAC
|
12 VDC, 24 VAC
|
12 VDC, 24 VAC
|
| Focal length |
4.1 - 73.8
|
3.3 ~ 12
|
3.3 ~ 12
|
3.3 ~ 12
|
| Presets |
64
|
--
|
--
|
--
|
| Back Light Compensation |
✔
|
--
|
--
|
--
|
| Auto Gain Control |
✔
|
--
|
--
|
--
|
| White Balance |
✔
|
--
|
--
|
--
|
| S/ N (Signal/ Noise) Ratio dB |
50
|
--
|
--
|
--
|
| Synchronisation |
Internal, External
|
--
|
--
|
--
|
| Signal Mode |
PAL
|
--
|
--
|
--
|
| Built-in IR LED |
✔
|
--
|
--
|
--
|
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