30
3. Convenient Features
❺
Using 4-Point Corner to Correct Keystone Distortion
[CORNERSTONE]
Use
the
[CORNERSTONE]
and
[PINCUSHION]
features
to
correct
keystone
(trapezoidal)
distortion
to
make
the
top
or
bottom
and
the
left
or
right
side
of
the
screen
longer
or
shorter
so
that
the
projected
image
is
rectangular.
Before performing correction
The
KEYSTONE
correction
has
features,
KEYSTONE
(HORIZONTAL/VERTICAL),
PINCUSHION,
and
CORNERSTONE.
If
the
value
of
either
CONERSTONE
or
PINCUSHION
has
corrected,
KEYSTONE
HORIZONTAL
and
KEYSTONE
VERTICAL
are
disabled.
In
this
case,
RESET
the
corrected
values
and
restart
to
correct
distortion.
Cornerstone
1. Press the KEYSTONE button with no menu displayed.
The KEYSTONE screen will be displayed.
• Press the KEYSTONE button when using the remote control.
• See page for PINCUSHION.
2. Press the
▼
button to select [CORNERSTONE] and press the ENTER button.
The drawing shows the upper left icon ( ) is selected.
The CORNERSTONE screen will be displayed.
3. Project an image so that the screen is smaller than the area of the raster.
4. Pick up any one of the corners and align the corner of the image with a corner of the screen.
Projected image
The drawing shows the upper right corner.