MODEL	BS-771D	BS-771C	BS-771A	BS-771F	BS-771I
Pickup device	1/3 Sony CCD			1/4 Sony CCD	1/4 Sharp CCD
Number of pixels	PAL: 752(H)×582(V) NTSC: 768(H)×492(V)		PAL: 512(H)×582(V) NTSC: 512(H)×492(V)
System of signal	PAL / NTSC
Horizontal resolution	520TV Lines	480TV Lines	420TV Lines
Minimum illumination	0Lux/F1.2(IR OPEN)
Lens	Built-in 6（3.6/8/12）mm
Backlight compensation	Auto
Electronic shutter	1/50(1/60)~1/100,000sec
AGC	Auto
White balance	Auto
S/N Ratio	>48dB
Gamma correction	>0.45
Sync system	Internal
Operation temperature	-20 ℃~50℃
Dimension(mm)	92(D)X94(H)
Weight(g)	455+ -5g
IR view distance	15-20M
Video output Level	1.0Vp-p/75 Ω
Power consumption	DC12V,<400mA