IP cameras Comparison: VIVOTEK, Bosch (4)

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	VIVOTEK IP7138/IP7139	Bosch NTI-50022-V3	Bosch NWC-0455	Bosch MIC-7522-Z30W
Contact manufacturer	Contact	Contact	Contact	Contact
Colour Type	Colour	True Day / Night	Colour	Colour / Monochrome
Resolution	1280 x 1024	2 MP	540	2 MP
Sensitivity Lux	2.7 @ F1.8	0.0	0.12	0.0013 ~ 0.0047
Voltage	12 VDC, PoE	12 V DC	11~36 VDC / 12~28 VAC	21 ~ 30 V AC, High PoE, 56 V DC
Lens Mount	CS	--	--	--
Focal Length mm	6.0	3 ~ 10	--	6.6 ~ 198
Image Frame Rate	30 fps	30 fps	25 / 30	60 fps
White Balance	✔	✔	✔	✔
Electronic Shutter Range	1/2 ~ 1/10,000	1/25[30] ~ 1/150000s	1/50 ~ 1/125,000	1/1 sec ~ 1/10000 sec
Chip Inch Size	--	1/3	1/3	1/2
Digital (DSP)	--	✔	✔	✔
Specialist Type	--	Infrared	Network	PTZ
Auto Iris	--	✔	✔	✔
Direct Drive	--	✔	✔	✔
Motion Activated	--	✔	--	--
Wide Dynamic Range	--	✔	✔	--
Picture Elements HxV	--	1952 x 1092	752 x 582	1920 x 1080
Back Light Compensation	--	✔	✔	✔
S/ N (Signal/ Noise) Ratio dB	--	> 50	50	>55
Signal Mode	--	--	PAL, NTSC	--
Auto Gain Control	--	--	--	✔

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