IP cameras Comparison: Videotec, Dahua Technology (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Chip Inch Size |
1/2
|
--
|
1/3
|
1/3
|
| Colour Type |
Colour / Monochrome
|
--
|
Colour / Monochrome
|
Colour / Monochrome
|
| Resolution |
550 TVL
|
2 MP
|
4MP
|
4MP
|
| Digital (DSP) |
✔
|
✔
|
--
|
--
|
| Auto Iris |
✔
|
--
|
--
|
--
|
| Direct Drive |
✔
|
--
|
--
|
--
|
| Voltage |
230 V AC
|
12 V DC, PoE
|
MicroUSB / 5 VDC
|
12 V DC, PoE
|
| Motion Activated |
✔
|
--
|
✔
|
✔
|
| High Speed |
✔
|
--
|
--
|
--
|
| Wide Dynamic Range |
✔
|
--
|
✔
|
✔
|
| Picture Elements HxV |
720 x 576
|
1920 x 1080
|
--
|
--
|
| Image Frame Rate |
25 fps
|
30fps
|
25/30 fps
|
25/30 fps
|
| Back Light Compensation |
✔
|
✔
|
✔
|
✔
|
| Auto Gain Control |
✔
|
✔
|
✔
|
✔
|
| White Balance |
✔
|
✔
|
✔
|
✔
|
| S/ N (Signal/ Noise) Ratio dB |
>50
|
> 50
|
>56
|
>56
|
| Signal Mode |
PAL
|
--
|
--
|
PAL
|
| Focal Length mm |
--
|
3.6
|
2.8 mm; 3.6 mm; 6 mm
|
2.7 ~ 13.5
|
| Electronic Shutter Range |
--
|
1 ~ 1/100,000s
|
Auto/Manual 1/3 s–1/100,000 s
|
Auto/Manual 1/3 s–1/100000 s
|
| Sensitivity Lux |
--
|
--
|
0.01 Lux@F1.6 (Colour,30IRE), 0.001 Lux@F1.6 (B/W,30IRE), 0 lux (Illuminator on)
|
0.008
|
| Mount Type |
--
|
--
|
Wall, Pole
|
Pole
|
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