Image sensor: 1/3-inch Sony HQ1 color CCD Horizontal resolutions: 520TV lines Signal system: PAL/NTSC Picture pixels: PAL: 752 (H) x 582 (V) NTSC: 768 (H) x 494 (V) LED No.: 44 pieces Ranging distance: 40-45m Infrared wavelength: 850nm Sync system: internal synchronization S/N ratio: >48dB Lens: 3.6/6/8/12mm Electronic shutter: PAL: 1/50 to 1/100,000 seconds NTSC: 1/60 to 1/100,000 seconds Gamma correction: r=0.45 Gain control: auto White balance: auto Backlight compensation:[...]