Epson 8300NL User Manual - Page 112

Image Size and Projection Distance

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note If you've installed the wide-angle rear projection lens, you won't be able to use the projector's Focus, Zoom, or Lens Shift functions. You must position the projector itself to obtain the desired image height, size, and focus (but Keystone correction can still be used). Lens Shift is better than angling the projector up or down to position the image, since it won't produce keystone distortion, which must be eliminated electronically. If you mount the projector on the ceiling above screen level, you'll have to tilt it down to center the image on the screen. This causes the image to lose its square shape, but you can correct the distortion by using the Keystone function in the projector's menu system (see page 67) or by pressing the Keystone button on the projector's control panel. Image Size and Projection Distance For standard lens usage, refer to the table below to help you determine projector placement if you know the size of image you want to display. (For information about using other lenses, see page 113.) Image size (4:3 aspect ratio)* Diagonal Width × height Projection distance** 30 inches 24 × 18.1 inches (61 × 46 cm) 3.4 to 4.8 feet (104 to 146 cm) 40 inches 31.9 × 24 inches (81 × 61 cm) 4.7 to 6.5 feet (142 to 197 cm) 50 inches 39.4 × 30 inches (100 × 76 cm) 5.9 to 8.2 feet (180 to 249 cm) 60 inches 47.2 × 35.4 inches (120 × 90 cm) 7.1 to 9.9 feet (217 to 301 cm) 80 inches 63 × 47.2 inches (160 × 120 cm) 9.6 to 13.3 feet (293 to 404 cm) 100 inches 78.7 × 59.1 inches (200 × 150 cm) 12.1 to 16.7 feet (369 to 508 cm) 200 inches 161.4 × 118.1 inches (410 × 300 cm) 24.5 to 33.6 feet (747 to 1025 cm) 300 inches 240.2 × 181.1 inches (610 × 460 cm) 36.9 to 50.6 feet (1126 to 1543 cm) 400 inches 318.9 × 240.2 inches (810 × 610 cm) 49.4 to 67.6 feet (1505 to 2060 cm) 500 inches 393.7 × 299.2 inches (1000 × 760 cm) 61.8 to 84.6 feet (1883 to 2578 cm) 600 inches 474.4 × 358.3 inches (1200 × 910 cm) 74.2 to 101.5 feet (2262 to 3095 cm) * The projector's native aspect ratio is 4:3. When you display a 16:9-sized image, the image height is reduced. See page 115. ** Projection distance refers to the horizontal distance from the lens to the screen. The image size will differ if you tilt the projector up or down at the screen or use the projector's Keystone function. 112 Appendix A: Projector Installation

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112
Appendix A: Projector Installation
Lens Shift
is better than angling the projector up or down to position
the image, since it won’t produce keystone distortion, which must be
eliminated electronically.
If you mount the projector on the ceiling above screen level, you’ll
have to tilt it down to center the image on the screen. This causes the
image to lose its square shape, but you can correct the distortion by
using the
Keystone
function in the projector’s menu system (see
page 67) or by pressing the
Keystone
button on the projector’s
control panel.
Image Size and Projection Distance
For standard lens usage, refer to the table below to help you determine
projector placement if you know the size of image you want to display.
(For information about using other lenses, see page 113.)
*
The projector’s native aspect ratio is 4:3. When you display a 16:9-sized image, the image height is
reduced. See page 115.
** Projection distance refers to the horizontal distance from the lens to the screen. The image size will
differ if you tilt the projector up or down at the screen or use the projector’s Keystone function.
note
If you’ve installed the
wide-angle rear projection
lens, you won’t be able to use
the projector’s Focus, Zoom,
or Lens Shift functions. You
must position the projector
itself to obtain the desired
image height, size, and focus
(but Keystone correction can
still be used).
Image size (4:3 aspect ratio)*
Projection distance**
Diagonal
Width × height
30 inches
24 × 18.1 inches (61 × 46 cm)
3.4 to 4.8 feet (104 to 146 cm)
40 inches
31.9 × 24 inches (81 × 61 cm)
4.7 to 6.5 feet (142 to 197 cm)
50 inches
39.4 × 30 inches (100 × 76 cm)
5.9 to 8.2 feet (180 to 249 cm)
60 inches
47.2 × 35.4 inches (120 × 90 cm)
7.1 to 9.9 feet (217 to 301 cm)
80 inches
63 × 47.2 inches (160 × 120 cm)
9.6 to 13.3 feet (293 to 404 cm)
100 inches
78.7 × 59.1 inches (200 × 150 cm)
12.1 to 16.7 feet (369 to 508 cm)
200 inches
161.4 × 118.1 inches (410 × 300 cm)
24.5 to 33.6 feet (747 to 1025 cm)
300 inches
240.2 × 181.1 inches (610 × 460 cm)
36.9 to 50.6 feet (1126 to 1543 cm)
400 inches
318.9 × 240.2 inches (810 × 610 cm)
49.4 to 67.6 feet (1505 to 2060 cm)
500 inches
393.7 × 299.2 inches (1000 × 760 cm)
61.8 to 84.6 feet (1883 to 2578 cm)
600 inches
474.4 × 358.3 inches (1200 × 910 cm)
74.2 to 101.5 feet (2262 to 3095 cm)