CCTV cameras Comparison: Visionhitech, Hikvision (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Chip Inch Size " |
1/3
|
--
|
--
|
1/3
|
| Colour Type |
True Day / Night
|
True Day / Night
|
Colour
|
True Day / Night
|
| Resolution TVL |
560
|
3 MP
|
3K
|
700
|
| Digital (DSP) |
✔
|
✔
|
✔
|
✔
|
| Specialist Types |
Infrared
|
--
|
--
|
Infrared
|
| Sensitivity lux |
0
|
0.01
|
0.001 Lux @ (F1.0, AGC ON), 0 Lux with white light
|
0
|
| Voltage |
24 V AC
|
12 V DC
|
12 V DC
|
--
|
| Focal Length mm |
4 ~ 9
|
2.8 ~ 6
|
2.8; 3.6
|
3.6
|
| Picture Elements HxV |
768 x 494
|
2052 x 1536
|
2960 x 1665
|
976 x 496
|
| Back Light Compensation |
✔
|
✔
|
✔
|
✔
|
| Auto Gain Control |
✔
|
✔
|
✔
|
✔
|
| White Balance |
✔
|
✔
|
✔
|
--
|
| Electronic Shutter range |
1/60 ~ 1/100,000 s
|
1/25(1/30)s to 1/50,000s
|
PAL: 1/25 s ~ 1/50,000 s; NTSC: 1/30 s ~ 1/50,000 s
|
PAL: 1/50 s ~ 1/100,000 s; NTSC: 1/60 s ~ 1/100,000 s
|
| S/ N (Signal/ Noise) Ratio dB |
>50
|
--
|
--
|
> 62
|
| Synchronisation |
Line-lock
|
Internal
|
--
|
Internal
|
| Signal Mode |
NTSC / PAL
|
--
|
PAL, NTSC
|
NTSC, PAL
|
| Wide Dynamic Range |
--
|
--
|
✔
|
--
|
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