Knoll hd108 User Manual

8 

HD108 Projection Throw Distance 16:9 Video Screen: 

Screen Diagonal 

92" 

103" 

106" 

110" 

122.5"  146.75" 

Minimum Distance 

142" 

158" 

163" 

169" 

188" 

225" 

Maximum 

Distance 

170" 190" 195" 

203" 

226" 

271" 

Screen offset 

12.6" 

14.1" 

14.5" 

15" 

16.8" 

20.7" 

Viewing Area 

45"x80"  50.5"x89.75" 52"x92" 54"x96" 60"x107" 72"x128" 

MAXIMUM DISTANCE TO SCREEN (16:9) = 1.848 x SCREEN DIAGONAL SIZE 
MINIMUM DISTANCE TO SCREEN (16:9) = 1.534 x SCREEN DIAGONAL SIZE 
SCREEN OFFSET (IMAGE DROP OR RISE) (16:9) = 0.137 x SCREEN DIAGONAL SIZE 

HD178 and HD290 Projection Throw Distance 16:9 Video Screen: 

Screen Diagonal 

92" 

103" 

106" 

110" 

122.5"  146.75" 

Minimum Distance 

122" 

137" 

141" 

146" 

163" 

195" 

Maximum 

Distance 

153" 172" 177" 

184" 

205" 

245" 

Screen offset 

6.7" 

7.5" 

7.7" 

8" 

9" 

10.7" 

Viewing Area 

45"x80"  50.5"x89.75" 52"x92" 54"x96" 60"x107" 72"x128" 

MAXIMUM DISTANCE TO SCREEN (16:9) = 1.673 x SCREEN DIAGONAL SIZE 
MINIMUM DISTANCE TO SCREEN (16:9) = 1.325 x SCREEN DIAGONAL SIZE 
SCREEN OFFSET (IMAGE DROP OR RISE) (16:9) = 0.073 x SCREEN DIAGONAL SIZE 

 

 
Aspect ratio is the ratio of the image width to 
image height. HDTV and most DVDs are 16:9, 
which is the default for this projector. When in 
4:3 mode the projector places black bars on 
both sides of the image. Native mode centers 
the image and turns off the internal scaler so 
that any resolution larger than the native 
projector resolution is cropped on the edges. 
Letterbox expands the image to fill the screen. 
 
What you plan to project will also help you 
choose between 4:3 and 16:9. For example, 
most TV shows are 4:3, while most movies are 
16:9. If you have a 16:9 screen, then you should 
select an aspect ratio of 16:9 for anamorphic 
movies and HDTV, and Native for 4:3 content. If 
you have a 4:3 screen you should still use 16:9 
for anamorphic movies or HDTV, but you also 
have the option of using 4:3, Native, or Natural 
Wide for 4:3 content. Keep in mind that 
anamorphic movies only appear correctly if the 
DVD player is set to output to a 16:9 television. 
Natural Wide stretches a 4:3 image to fill the 
entire 16:9 screen. The center two-thirds of the 
image is unchanged; the edges of the image are 
stretched.