Epson 821p - Manual (Page 93)

93
Technical Specifications
General
Type of display Poly-silicon TFT active matrix
Lens F=1.70 to 1.87, f=21.3 to 25.6 mm
Resolution 1024 × 768 pixels
Color reproduction Full color, 16.8 million colors
Brightness (ANSI) 2600 lumens (High brightness mode)
1900 lumens (Low brightness mode)
Contrast ratio 500:1
Image size 30 to 300 inches (0.8 to 7.6 meters)
Projection distance 2.8 to 48.3 feet (0.85 to 14.7 meters)
Projection methods Front, rear, ceiling
Focus adjustment Manual
Zoom adjustment Manual
Internal sound system 5 W monaural
Optical aspect ratio 4:3 (horizontal:vertical)
Zoom ratio 1:1.6
Noise level 36 dB (High brightness mode)
30 dB (Low brightness mode)
Keystone correction
angle
± 15° vertical (maximum)