IP cameras Comparison: Bosch, Dahua Technology (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Chip Inch Size |
1/3
|
1/2
|
1/1.8
|
1/2
|
| Colour Type |
Colour / Monochrome
|
Colour / Monochrome
|
Colour
|
Colour / Monochrome
|
| Resolution |
540
|
4MP
|
2×4MP
|
640 x 512
|
| Digital (DSP) |
✔
|
✔
|
--
|
✔
|
| Specialist Type |
Infrared
|
--
|
--
|
Thermal
|
| Sensitivity Lux |
0.06 @ F1.4
|
0 ~ 0.015
|
0.0005 lux@F1.0 (Color, 30 IRE), 0.0002 lux@F1.0 (B/W, 30 IRE), (Illuminator on) 0
|
--
|
| Auto Iris |
✔
|
✔
|
--
|
✔
|
| Voltage |
12 VDC, 24 VAC
|
12 V DC, PoE
|
12 V DC, PoE+, ePoE
|
--
|
| Focal Length mm |
4 ~ 9
|
2.8 ~ 6
|
3.6 mm
|
100mm; 20mm ~ 100mm; 30mm ~ 150mm; 38mm ~ 190mm
|
| Picture Elements HxV |
768 x 494
|
2688 x 1520
|
--
|
--
|
| Image Frame Rate |
30 fps
|
25 ~ 30 fps
|
--
|
20 ~ 30 fps
|
| Auto Gain Control |
✔
|
✔
|
✔
|
✔
|
| Gamma Correction |
0.45
|
--
|
--
|
--
|
| Electronic Shutter Range |
1/60 ~ 1/100,000
|
1/3~1/100000s
|
Auto/Manual 1/3 s–1/100,000 s
|
1/1s ~ 1/100000s
|
| S/ N (Signal/ Noise) Ratio dB |
48
|
--
|
>56
|
> 55
|
| Signal Mode |
NTSC
|
PAL, NTSC
|
--
|
--
|
| Direct Drive |
--
|
✔
|
--
|
✔
|
| Mount Type |
--
|
Pole, Corner
|
--
|
--
|
| Wide Dynamic Range |
--
|
✔
|
✔
|
✔
|
| Back Light Compensation |
--
|
✔
|
✔
|
✔
|
| White Balance |
--
|
✔
|
✔
|
✔
|
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