Epson Projector Z8150NL User Manual

							Adjusting the Projected Image
161
B
To zoom, use the [
h
] button on the remote control or the 
arrow buttons on the back of the projector as shown below.
C
When you’re done, press the [Esc] button on the remote 
control or on the back of the projector.
Adjusting the Tilt of the Projected Image
When setting up on a desk, adjust the horizontal tilt of the projector with 
its front and rear feet.
Correcting Distortion in the Projected Image
There are four methods of correcting distortion in projected images as 
below.
•Quick Corner
This allows you to manually correct each of the four corners of the 
projected image separately. s"Quick Corner" p.162
We recommend using Quick Corner to accurately adjust keystone 
distortion.
•H/V-Keystone
This allows you to manually correct distortion in the horizontal and 
vertical directions independently. You can perform easy H/V-Keystone 
corrections by using the [w/] [v/] [/ ] buttons 
on the projector's control panel. s"H/V-Keystone" p.164
•Arc Correction
Fine adjustment of the curved distortion caused by slack or shrinkage 
of the screen. s"Arc Correction" p.166 
						

							Adjusting the Projected Image
162
•Point Correction
Corrects slight distortion which occurs partially, or adjusts the screen 
position in an overlapping area when projecting from multiple 
projectors. s"Point Correction" p.176
Quick Corner, H/V-Keystone, Arc Correction, and Point Correction 
cannot be performed at the same time. Select the correction method from 
Geometric Correction in the configuration menu. The default setting 
for Geometric Correction is set to H/V-Keystone, so when [w/], 
[v/], [/ ] buttons are pressed, H/V-Keystone 
correction is carried out.
Because Quick Corner, H/V-Keystone, Arc Correction, and Point 
Correction can be carried out while projecting a test pattern, you do not 
need to make preparations by connecting a computer or other 
equipment.
Quick Corner
ProcedureA
During projection, press the [Menu] button. Select Settings 
menu - "Geometric Correction" and then press the [Enter] 
button. s"Using the Configuration Menu" p.55
Using the Remote Control Using the Control Panel 
						

							Adjusting the Projected Image
163
B
Select "Quick Corner", and then press the Enter button.
Press the [Enter] button again to display the selection screen from 
which you can select one of the four corners.
C
Use the [h] button on the remote control or the [w/], 
[v/ ], [/ ] buttons on the control panel to 
select the corner you want to adjust, and then press the 
[Enter] button. 
						

							Adjusting the Projected Image
164
D
To adjust the shape, use the [h] button on the remote 
control or the [w/ ], [v/ ], [/ ] buttons on 
the control panel.
If the triangle in the direction you are adjusting the shape turns 
gray, as shown in the screenshot below, you cannot adjust the shape 
any further in that direction.
E
Repeat steps 3 and 4 as needed to adjust any remaining 
corners.
F
When you are done, press the [Esc] button to exit the 
correction menu.
Because the correction method was changed to Quick Corner from 
Geometric Correction in the configuration menu, when [w/], 
[v/], [/ ] buttons are pressed later, the screen 
for selecting the corner in step 2 is displayed. Change Geometric 
Correction from the configuration menu to H/V-Keystone if you 
want to correct H/V-Keystone when pressing the [w/], [v/], 
[/ ] buttons on the control panel. sp.65
q
If the [Esc] button is held down for about two seconds while correcting 
with Quick Corner, the confirm default reset screen is displayed.
Select "Yes" to reset the result of Quick Corner corrections.
H/V-Keystone
Procedure
Press the [w/ ], [v/ ], [/ ] buttons on the control 
panel to adjust keystone settings in the horizontal and vertical di-
rections independently.
q
This adjustment can also be made from Geometric Correction - 
H/V-Keystone on the Settings menu. s
p.65 
						

							Adjusting the Projected Image
165
•Correcting vertical keystone
Vertical keystone can be corrected to a vertical projector tilt of up to 30° 
against the screen.
If the [w/] and [v/ ] buttons are pressed simultaneously for at 
least 1 second, the results of any vertical keystone correction will be 
reset.•Correcting horizontal keystone
Horizontal keystone can be corrected to a horizontal projector tilt of up 
to 20° against the screen.
If the [/ ] buttons are pressed simultaneously for at least 
1 second, the results of any horizontal keystone correction will be reset.
q
Before performing horizontal or vertical keystone adjustment, shift the lens 
to the positions mentioned below. Otherwise, your image may not be 
adjusted correctly. s"Adjusting the Position of the Projected Image 
(Lens Shift)" p.159
•The horizontal lens shift is set to the center. 
						

							Adjusting the Projected Image
166
•The vertical lens shift is set to the top or bottom.
The correction may not be properly performed for some zoom settings. 
And, the projected screen size may become smaller after performing the 
correction. Be careful about the projection distance when installing the 
projector.
Correct the image using Quick Corner to precisely align the projected 
image with the screen or to fine-tune the image. s"Quick Corner" p.162
Arc Correction
ProcedureA
During projection, press the Menu button. Select Settings 
menu - "Geometric Correction" and then press the Enter 
button. s"Using the Configuration Menu" p.55
B
Select "Arc Correction" and press the [Enter] button.
Press the [Enter] button again, and the screen below appears, so 
you can select one of the 8 vertical/horizontal areas and corners.
Using the Remote Control Using the Control Panel 
						

							Adjusting the Projected Image
167
C
Use the [h] button on the remote control or the [w/], 
[v/ ], [/ ] buttons on the control panel to 
select the area you want to adjust, and then press the [Enter] 
button.
When selecting a corner, you can adjust the two sides next to the 
corner.
D
To adjust the shape, use the [h] button on the remote 
control or the [w/ ], [v/ ], [/ ] buttons on 
the control panel.
If the triangle in the direction you are adjusting the shape turns 
gray, as shown in the screenshot below, you cannot adjust the shape 
any further in that direction.
q
If you press the [Default] button while adjusting, the value that you are 
adjusting is reset to the default. 
						

							Adjusting the Projected Image
168
E
Press the [Esc] button to return to the previous screen.
F
Repeat steps 3 to 5 as needed to adjust any remaining parts.
G
When you are done, press the [Esc] button to exit the 
correction menu.
q
If the [Esc] button is held down for about two seconds while correcting 
with Arc Correction, the following screen is displayed.
Select "Yes" to reset the results of any Arc Correction adjustments. 
						

							Adjusting the Image Quality
169
Adjusting the Image QualityHue, Saturation, and Brightness Adjustment
The Hue, Saturation, and Brightness for each of the R (red), G (green), B 
(blue), C (cyan), M (magenta) and Y (yellow) color components can be 
adjusted.
The menu is displayed in the following order.
Image menu - Advanced - RGBCMY
q
If you press the [Default] button while adjusting, the value that you are 
adjusting is reset to the default.
Gamma Adjustment
Before are three ways the gamma setting in the configuration menu can 
be adjusted.
Select and adjust the correction value
When a smaller value is selected, the dark areas of images become 
brighter, but the lighter areas may become oversaturated. When a larger 
value is selected, you can reduce the overall brightness of the image to 
make the image sharper.
HueAdjusts the overall hue of the image, bluish – greenish – 
reddish.
SaturationAdjusts the overall vividness of the image.
BrightnessAdjusts the overall color brightness of the image.
 Method
Menu
Select and adjust 
the correction 
valueImage - Advanced - Gamma
Adjust while 
viewing the 
imageImage - Advanced - Gamma - Customized - Adjust it 
from the image 
Adjust using the 
gamma 
adjustment 
graphImage - Advanced - Gamma - Customized - Adjust it 
from the graph 
						

							Adjusting the Image Quality
170
q
The gamma graph's horizontal axis represents the input signal level and its 
vertical axis represents the output signal level.
When Color Mode is set to DICOM SIM from the Image menu, select 
the correction value based on your screen size in reference to a 150 inch 
screen.
If your screen is smaller than 150 inches, select a large value. If your 
screen is larger than 150 inches, select a small value.
q
Medical images may not be reproduced correctly according to your settings 
and screen specifications.
Adjust while viewing the image
Move the cursor on the projected image to the part where you want to 
change the brightness, and adjust the value.
q
If you press the [Default] button while adjusting, the value that you are 
adjusting is reset to the default.
Adjust using the gamma adjustment graph
Adjust while looking at the gamma adjustment graph.
q
If you press the [Default] button while adjusting, the value that you are 
adjusting is reset to the default.