Epson 1220, 1260, S9 Setting Up the Projector , You can also use the Image Size Calculator on the Epson website. PowerLite S9 (4:3 images)

Setting Up the Projector 23
Image size increases with distance, but can vary depending on the
aspect ratio (image shape), how you zoom into the image, and
whether you’ve adjusted other image settings. Use the illustrations and
tables below to help you determine the projection distance.
You can also use the Image Size Calculator on the Epson website.
PowerLite S9 (4:3 images)
Center of
lens
Center of
lens
Screen size
Projection distance (A)
Wide to Tele Offset (B)
30 inches
(76 cm)
34 to 47 inches
(87 to 119 cm)
–2 inches
(–5 cm)
50 inches
(127 cm)
58 to 79 inches
(147 to 200 cm)
–3.3 inches
(–8 cm)
60 inches
(152 cm)
70 to 95 inches
(177 to 240 cm)
–3.9 inches
(–10 cm)
80 inches
(203 cm)
93 to 126 inches
(237 to 321 cm)
–5.2 inches
(–13 cm)
100 inches
(254 cm)
117 to 158 inches
(297 to 402 cm)
–6.5 inches
(–17 cm)
150 inches
(381 cm)
176 to 238 inches
(447 to 605 cm)
–9.8 inches
(–25 cm)
200 inches
(508 cm)
235 to 318 inches
(597 to 807 cm)
–13.1 inches
(–33 cm)