Dome cameras Comparison: Dahua Technology, Visionhitech  (4)

Chip Inch Size
1/3
1/3
1/3
1/3
Colour Type
Colour / Monochrome
Colour / Monochrome
Colour / Monochrome
Colour / Monochrome
Resolution TVL
2MP
650
650
650
Sensitivity lux
0 ~ 0.05
0.1
0.1
0.1
Digital (DSP)
--
--
--
Indoor/Outdoor
Indoor/Outdoor
Indoor
Indoor
Indoor
Voltage
12 V DC
12 VDC, 24 VAC
12 VDC, 24 VAC
12 VDC, 24 VAC
Focal length
2.7 ~ 13.5mm
3.3 ~ 12
3.3 ~ 12
3.3 ~ 12
Back Light Compensation
--
--
--
Auto Gain Control
--
--
--
White Balance
--
--
--
Electronic Shutter range
1/4 ~ 1/100,000s
--
--
--
S/ N (Signal/ Noise) Ratio dB
> 65
--
--
--
Signal Mode
PAL, NTSC
--
--
--
Built-in IR LED
--
--
--
Dome Type
--
Static
Variable focus
Variable Focus

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