Dome cameras Comparison: March Networks, Visionhitech (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Chip Inch Size |
1/3
|
1/3
|
1/3
|
1/3
|
| Colour Type |
Colour / Monochrome
|
Colour / Monochrome
|
Colour / Monochrome
|
Colour / Monochrome
|
| Resolution TVL |
1080p
|
650
|
650
|
650
|
| Sensitivity lux |
0 ~ 0.03
|
0.1
|
0.1
|
0.1
|
| Digital (DSP) |
✔
|
--
|
--
|
--
|
| Voltage |
12 V DC
|
12 VDC, 24 VAC
|
12 VDC, 24 VAC
|
12 VDC, 24 VAC
|
| Focal length |
2.8 ~ 12 mm
|
3.3 ~ 12
|
3.3 ~ 12
|
3.3 ~ 12
|
| Back Light Compensation |
✔
|
--
|
--
|
--
|
| Auto Gain Control |
✔
|
--
|
--
|
--
|
| White Balance |
✔
|
--
|
--
|
--
|
| Electronic Shutter range |
1/30 (25) ~ 30,000s
|
--
|
--
|
--
|
| S/ N (Signal/ Noise) Ratio dB |
55
|
--
|
--
|
--
|
| Synchronisation |
Internal
|
--
|
--
|
--
|
| Signal Mode |
PAL, NTSC
|
--
|
--
|
--
|
| Built-in IR LED |
✔
|
--
|
--
|
--
|
| Dome Type |
--
|
Variable Focus
|
Static
|
Variable focus
|
| Indoor/Outdoor |
--
|
Indoor
|
Indoor
|
Indoor
|
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