InFocus IN82 - Manual (Page 7)

6
Choosing the aspect ratio
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 pro-
jector 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 pro-
jector 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.
NOTE: If you purchase an optional anamorphic lens, select the Letterbox option to
achieve the 2.35:1 aspect ratio.
16 16
9 9
16:9 image input 16:9 image
16:9
aspect ratio
16
9
4
3
4:3 image input 4:3 image on 16:9 screen
bl
ac
k
ba
rs
bla
ck
ba
rs 4:3 aspect ratio
16
9
letterbox image input 16:9 image fills 16:9 screen
black bars
black bars
4
3 letterbox
aspect ratio
4:3 image fills 16:9 screen
natural wide
aspect ratio
4:3 image input
4
3
16
9
K1 RG.fm Page 6 Thursday, September 27, 2007 10:24 AM