CCTV cameras Comparison: Dahua Technology, Bosch (4)

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	Dahua Technology DH-CA-FW781IP	Bosch LTC0455/51	Bosch LTC 0435	Bosch VTI-216V04-1
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	700	540	330	520
Digital (DSP)	✔	✔	✔	✔
Specialist Types	Infrared	--	--	Infrared
Sensitivity lux	0.001	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
Focal Length mm	2.7 ~ 9	--	2.8 ~ 50	3.8 ~ 9.5
Picture Elements HxV	976 x 582	752 x 582	500 x 582	752 x 582
Back Light Compensation	✔	✔	✔	--
Auto Gain Control	✔	--	✔	--
White Balance	✔	✔	--	--
Electronic Shutter range	1/50 ~ 1/100,000s	--	1/50 ~ 1/125,000	1/50 ~ 1/100,000
S/ N (Signal/ Noise) Ratio dB	>65	50	50	45
Synchronisation	Internal	Line-Lock	Internal, Line-lock	--
Auto Iris	--	✔	--	✔
Direct Drive	--	✔	--	--
Lens Mount	--	C/CS	C/CS	--
Motion Activated	--	✔	--	--
Signal Mode	--	PAL	CCIR/EIA	--
Gamma Correction	--	--	--	0.45

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