CCTV cameras Comparison: Messoa, Dahua Technology (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Chip Inch Size " |
1/2
|
1/3
|
1/3
|
1/3
|
| Colour Type |
Colour / Monochrome
|
Colour / Monochrome
|
Colour / Monochrome
|
Colour / Monochrome
|
| Resolution TVL |
600
|
2MP
|
1080P
|
5MP
|
| Digital (DSP) |
✔
|
✔
|
--
|
✔
|
| Specialist Types |
Infrared
|
--
|
Infrared
|
Infrared
|
| Sensitivity lux |
0
|
0 ~ 0.008
|
0 ~ 0.02
|
--
|
| Voltage |
24 V AC
|
12 V DC
|
12 V DC
|
12 V DC
|
| High Speed |
✔
|
--
|
--
|
--
|
| Focal Length mm |
75
|
3.6
|
2.7 ~ 12
|
3.6 mm; 6 mm; 8 mm
|
| Mount Type |
Wall/Corner/Pole
|
--
|
Wall, Pole
|
--
|
| Wide Dynamic Range |
✔
|
✔
|
✔
|
✔
|
| Picture Elements HxV |
768 x 494
|
1920 x 1080
|
1920 x 1080
|
2592 x 1944
|
| Back Light Compensation |
✔
|
✔
|
✔
|
✔
|
| Auto Gain Control |
✔
|
✔
|
✔
|
✔
|
| White Balance |
✔
|
✔
|
✔
|
✔
|
| Gamma Correction |
0.45/1
|
--
|
--
|
--
|
| Electronic Shutter range |
1/60 ~ 1/100,000sec
|
1/25(1/30) ~ 1/50,000s
|
PAL: 1/25s–1/100000s / NTSC: 1/30s–1/100000s
|
1/25s–1/100000s
|
| S/ N (Signal/ Noise) Ratio dB |
>50
|
65
|
>65
|
--
|
| Synchronisation |
Internal, Line-lock
|
--
|
--
|
--
|
| Signal Mode |
NTSC
|
PAL, NTSC
|
PAL, NTSC
|
--
|
| Direct Drive |
--
|
✔
|
--
|
--
|
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