CCTV cameras Comparison: SightLogix, Dahua Technology (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Chip Inch Size " |
1/4
|
1/3
|
1/3
|
--
|
| Colour Type |
Colour / Monochrome
|
Colour / Monochrome
|
Colour / Monochrome
|
Colour / Monochrome
|
| Resolution TVL |
640 x 480
|
2MP
|
1080P
|
5 MP
|
| Digital (DSP) |
✔
|
✔
|
--
|
--
|
| Sensitivity lux |
0.7 @ F1.4
|
0 ~ 0.008
|
0 ~ 0.02
|
0.001
|
| Voltage |
24 V AC ~ V DC, PoE
|
12 V DC
|
12 V DC
|
12 V DC
|
| Focal Length mm |
2.8 ~ 48
|
3.6
|
2.7 ~ 12
|
2.7 ~ 13.5
|
| Picture Elements HxV |
640 x 480
|
1920 x 1080
|
1920 x 1080
|
--
|
| S/ N (Signal/ Noise) Ratio dB |
>50
|
65
|
>65
|
> 65
|
| Direct Drive |
--
|
✔
|
--
|
--
|
| Wide Dynamic Range |
--
|
✔
|
✔
|
✔
|
| Back Light Compensation |
--
|
✔
|
✔
|
✔
|
| Auto Gain Control |
--
|
✔
|
✔
|
✔
|
| White Balance |
--
|
✔
|
✔
|
✔
|
| Electronic Shutter range |
--
|
1/25(1/30) ~ 1/50,000s
|
PAL: 1/25s–1/100000s / NTSC: 1/30s–1/100000s
|
PAL: 1/3 s–1/100,000 s, NTSC: 1/4 s–1/100,000 s
|
| Signal Mode |
--
|
PAL, NTSC
|
PAL, NTSC
|
PAL, NTSC
|
| Specialist Types |
--
|
--
|
Infrared
|
--
|
| Mount Type |
--
|
--
|
Wall, Pole
|
Pole
|
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