Positioning The Projector; Image Size And Projection Distance - Epson PowerLite S3 Product Information

Positioning the Projector

Follow these guidelines to get the best results when projecting:
❏ Place the projector on a sturdy, level surface, between
3 and 40 feet from the screen.
❏ Make sure there is plenty of space for ventilation around and
under the projector.
❏ Make sure the projector is within 10 feet of a grounded
electrical outlet or extension cord and within 5 feet of the
image source.
❏ Face the projector squarely toward the screen.
The projector supports 4 viewing setups, as shown below. If it is
installed in a rear or overhead position, you need to select the
correct projection option from the Setting menu after you turn
it on.
If the projector is tilted in the front or the back, you may need
to adjust the image shape. See page 7.
Table
Convenient for temporary front
projection. Choose from
Front
the menu.
Ceiling
Professional installation
recommended. Choose
Front/Ceiling
from the menu.
Rear
For permanent installation behind a
translucent screen. Choose
Rear
from the menu.
Rear/Ceiling
Professional installation behind a
translucent screen recommended.
Choose from the menu.
Rear/Ceiling

Image Size and Projection Distance

The distance between the projector and the screen determines
the basic size of the projected image, as shown below. Because
other adjustments—such as those made with the
buttons—also affect the size of the image, the
Keystone
numbers shown in the illustration should be considered for
general guidelines, not exact measurements.
Distance from projector to screen (ft.)
7.8–10.5
5.8–7.9
4.8–6.6
3.8–5.2
2.9–3.9
Use the formulas given below to either find out how large your
image will be when you know the distance from the projector to
the screen, or to find out how far from the screen to place the
projector when you want an image of a certain size. Since the
size of the image can be changed by rotating the zoom ring,
formulas are given for both the minimum and maximum sizes.
To determine the diagonal size (inches) of an image when you
know the projection distance (feet):
Wide: Maximum diagonal size (inches) = 10.161727 × distance
(feet) + 0.9347
Tele: Maximum diagonal size (inches) = 7.527206 × distance
(feet) + 0.69237
To determine the projection distance (feet) when you know the
diagonal size (inches) of the screen image:
Wide: Maximum projection distance (feet) = 0.09841 ×
diagonal size (inches) - 0.09198
Tele : Maximum projection distance (feet) = 0.13285 ×
diagonal size (inches) - 0.09198
3/05
Epson PowerLite S3 Projector
29.4(Wide)–39.8(Tele) ft.
19.6–26.5
9.7–13.2
Epson PowerLite S3 Projector - 3
and
Aspect
(in.)