Garmin EX21 Manuale Utente

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81
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Technical Specifications
General
Type of display
Epson poly-silicon TFT active matrix
Resolution
(native format)
800 × 600 pixels (SVGA)
Color reproduction
16.8 million colors
Light output
(brightness)
High mode:
White light output 2200 lumens 
(ISO 21118 standard)
Color light output 2200 lumens
Low mode:
White light output 1750 lumens 
(ISO 21118 standard)
Color light output 1750 lumens
Contrast ratio
2000:1 (with 
Auto Iris
 setting turned 
on in the Image menu; see page 45)
460:1 (with 
Auto Iris
 setting turned off 
in the Image menu; see page 45)
Image size
(4:3 image)
30 to 350 inches (76.2 to 889 cm)
Projection distance
(4:3 image)
34 to 412 inches (87 to 1047 cm)
Projection methods
Front, rear, upside-down (ceiling 
mount)
Internal sound system
(monaural)
1 W
Optical aspect ratio
4:3 (horizontal:vertical)
Zoom ratio
Digital 1:1.35