Runco Q-750I User Manual

Page of 108
Q-750i Series Installation/Operation Manual
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Table 4-2. Aspect Ratio Settings 
Aspect 
Ratio 
Setting
Description
Aspect 
Ratio of 
Source 
Signal
Geometry of Projected Image
With Standard Lens 
(1.78:1 Screen)
With Anamorphic Lens (2.35:1 Screen)
16:9
16:9 linearly scales the 
source active image 
horizontally and vertically 
to fill a 16:9 screen.
16:9
4:3
Letterbox
With a 16:9 source 
image, Letterbox mode 
crops the top and 
bottom portion of the 
image and vertically 
stretches the remaining 
portion to fill a 16:9 
image area. 
 
 
It scales (zooms in on) a 
4:3 image linearly (by the 
same amount on all 
sides) to fill a 16:9 
display. 
16:9
4:3