CCTV cameras Comparison: Visionhitech, LILIN (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Chip Inch Size " |
1/3
|
1/3
|
1/3
|
1/3
|
| Colour Type |
Colour / Monochrome
|
True Day / Night
|
True Day / Night
|
Colour / Monochrome
|
| Resolution TVL |
520
|
540
|
540
|
540
|
| Digital (DSP) |
✔
|
✔
|
✔
|
✔
|
| Specialist Types |
Infrared
|
Infrared
|
Infrared
|
Infrared
|
| Auto Iris |
✔
|
✔
|
✔
|
--
|
| Sensitivity lux |
0.01
|
0.01
|
0.01
|
0
|
| Direct Drive |
✔
|
✔
|
✔
|
--
|
| Voltage |
24 VDC / 24 VAC
|
230 V AC
|
24 V AC
|
12 V DC
|
| Focal Length mm |
4 ~ 9
|
3.3 ~ 12
|
3.3 ~ 12
|
3.6
|
| Picture Elements HxV |
768 x 494
|
--
|
752 x 582
|
768 x 494
|
| Back Light Compensation |
✔
|
✔
|
✔
|
✔
|
| Auto Gain Control |
✔
|
✔
|
✔
|
✔
|
| Gamma Correction |
0.45
|
--
|
--
|
y=0.45
|
| Electronic Shutter range |
1/50 ~ 1/100,000
|
--
|
--
|
1/60(1/50) ~ 1/100,000 s
|
| S/ N (Signal/ Noise) Ratio dB |
> 50
|
>50
|
>50
|
>50
|
| Synchronisation |
Internal / Line-lock
|
Internal
|
Internal
|
Internal
|
| Signal Mode |
PAL, NTSC
|
--
|
PAL / NTSC
|
PAL, NTSC
|
| White Balance |
--
|
✔
|
✔
|
✔
|
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