Epson EX21 - Manual (Page 36)

36 Displaying and Adjusting the Image
Select from one of these Aspect options:
■ Normal (for images sent through the Computer (Component
Video) port only) : Displays images using the full projection area
and maintains the aspect ratio of the image. Choose this setting to
automatically resize the image and make the best use of the
display area.
■ 4:3: Displays images using the full projection area at an aspect
ratio of 4:3.
■ 16:9: Converts the aspect ratio of the image to 16:9. 4:3 ratio
images are elongated horizontally to fit.