Visual Presenter / Document-Kamera (AV-2800T)

Model AV-2800T Lens F=1.6～3.7mm, f=3.9～85.8mm Camera scope MAX:280*220mm Effective pixel 800,000 Zoom 22 optical power zoom, 10 multiple digital zoomAperture Automatic CCD camera 1/4 CCD MIN illuminance 1LUX Composite video signal 1.0Vp-p 75Ω White balance Automatic DPI 1024*768 Resolution ≥ 520TV lines Signal-to-noise ≥ 55dB Positive / Negative Yes LED compensation Yes Colour adjustment Built-in Image freeze Yes Bilateral light, bottom lightYes Input switch 2 VGA input 1 Composite video output 1 VGA output 2 S-Video output 1 USB Optional Power DC 12V 3A 36 W Mintor 2.5-inch Lighting system bilateral light,LED*2, bottom light:LED Close dimension 465mm*300mm*150mm Gross weight /Net weight 4.5kg/3.5kg