CCTV cameras Comparison: Dahua Technology, Bosch (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Chip Inch Size " |
1/3
|
1/3
|
1/3
|
1/3
|
| Colour Type |
Colour / Monochrome
|
Colour / Monochrome
|
Colour
|
Colour / Monochrome
|
| Resolution TVL |
4K
|
540
|
330
|
520
|
| Digital (DSP) |
✔
|
✔
|
✔
|
✔
|
| Specialist Types |
Infrared
|
--
|
--
|
Infrared
|
| Sensitivity lux |
0 ~ 0.02
|
0.018
|
0.24
|
0.0
|
| Voltage |
12 V DC
|
230 V AC
|
12 V DC / 24 V AC
|
12 V DC / 24 V AC
|
| Motion Activated |
✔
|
✔
|
--
|
--
|
| Focal Length mm |
2.8 mm
|
--
|
2.8 ~ 50
|
3.8 ~ 9.5
|
| Mount Type |
Pole
|
--
|
--
|
--
|
| Wide Dynamic Range |
✔
|
--
|
--
|
--
|
| Picture Elements HxV |
3840 x 2160
|
752 x 582
|
500 x 582
|
752 x 582
|
| Back Light Compensation |
✔
|
✔
|
✔
|
--
|
| Auto Gain Control |
✔
|
--
|
✔
|
--
|
| White Balance |
✔
|
✔
|
--
|
--
|
| Electronic Shutter range |
PAL: 1/25 s ~ 1/100000 s; NTSC: 1/30 s ~ 1/100000 s
|
--
|
1/50 ~ 1/125,000
|
1/50 ~ 1/100,000
|
| S/ N (Signal/ Noise) Ratio dB |
> 65
|
50
|
50
|
45
|
| Signal Mode |
PAL, NTSC
|
PAL
|
CCIR/EIA
|
--
|
| Auto Iris |
--
|
✔
|
--
|
✔
|
| Direct Drive |
--
|
✔
|
--
|
--
|
| Lens Mount |
--
|
C/CS
|
C/CS
|
--
|
| Synchronisation |
--
|
Line-Lock
|
Internal, Line-lock
|
--
|
| Gamma Correction |
--
|
--
|
--
|
0.45
|
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