Brightness (ANSI lumens): 3500, Native Resolution: WXGA (1280x800), Native Aspect Ratio: 16:10, Contrast Ratio (FOFO): 20,000:1, Display Color: 30-bit (1.07 billion colors), Light Source: Lamp, Zoom Ratio: Fixed, Lens: F/# = 2.6,f = 6.9 mm, Projection Offset (Full-Height): 105%, Keystone Adjustment: 1D, Vertical ± 30 degrees. Benq MW826STH produces 3,500 high ANSI lumen brightness and resolution for perfect projection performance with crisp images and sharp text even in bright lecture room