Surveillance cameras Comparison: Visionhitech, Hikvision (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Chip Inch Size " |
1/3
|
--
|
--
|
--
|
| Colour Type |
Colour / Monochrome
|
True Day / Night
|
Colour / Monochrome
|
Colour
|
| Resolution TVL |
600
|
3 MP
|
2MP
|
2 MP
|
| Digital (DSP) |
✔
|
✔
|
--
|
✔
|
| Specialist Types |
Infrared
|
--
|
--
|
Infrared
|
| Auto Iris |
✔
|
--
|
--
|
--
|
| Sensitivity lux |
0.2
|
0.01
|
0.01 Lux @(F1.6, AGC ON), 0 Lux with White Light
|
0.0003 Lux @ (F1.0, AGC ON), 0 Lux with white light
|
| Direct Drive |
✔
|
--
|
--
|
--
|
| Voltage |
12 V DC
|
12 V DC
|
12 V DC
|
12 V DC
|
| Focal Length mm |
4.3
|
2.8 ~ 6
|
2.8 mm
|
2.8; 3.6
|
| Picture Elements HxV |
768 x 494
|
2052 x 1536
|
--
|
1920 x 1080
|
| Back Light Compensation |
✔
|
✔
|
--
|
✔
|
| Auto Gain Control |
✔
|
✔
|
--
|
✔
|
| Gamma Correction |
0.45
|
--
|
--
|
--
|
| Electronic Shutter range |
1/50 ~ 1/100,000
|
1/25(1/30)s to 1/50,000s
|
PAL: 1/12.5 s ~ 1/50,000 s, NTSC: 1/15 s ~ 1/50,000 s
|
PAL: 1/25 s ~ 1/50,000 s; NTSC: 1/30 s ~ 1/50,000 s
|
| S/ N (Signal/ Noise) Ratio dB |
> 50
|
--
|
--
|
--
|
| Synchronisation |
Internal
|
Internal
|
--
|
--
|
| Signal Mode |
PAL, NTSC
|
--
|
PAL/NTSC
|
PAL, NTSC
|
| White Balance |
--
|
✔
|
--
|
✔
|
| Wide Dynamic Range |
--
|
--
|
--
|
✔
|
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