InFocus IN74, IN76 manual Choosing the aspect ratio

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 projector places black bars on both sides of the image. Native mode centers the image and turns off the internal scaler so that any resolu- tion larger than the native projector resolution is cropped on the edges. Let- terbox 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.

16:9

aspect ratio

4:3 aspect ratio

letterbox aspect ratio

natural wide aspect ratio

16:9 image input

9

16

4:3 image input

3

4

letterbox image input

black bars

3

black bars

4

4:3 image input

3

4

16:9 image

9

16

4:3 image on 16:9 screen

9	bars	bars
	black	black
		16

16:9 image fills 16:9 screen

9

16

4:3 image fills 16:9 screen

9

16

6