Epson 5550C - PowerLite SVGA LCD Projector, User Manual, Page: 64 / 178

Positioning the Projector
53
To determine the minimum and maximum diagonal size of an image
when you know the projection distance:
p
Inches:
Maximum diagonal size = (0.6038
×
projection distance)
+
1.8898
Minimum diagonal size = (0.4631
×
projection distance)
+
1.4000
p
Centimeters:
Maximum diagonal size = (0.6038
×
projection distance)
+
4.8001
Minimum diagonal size = (0.4631
×
projection distance)
+
3.5560
To determine the projection distance when you know the diagonal
size of the screen image:
p
Inches:
Maximum projection distance = (2.1593
×
diagonal size)
−
3.0229
Minimum projection distance = (1.6562
×
diagonal size)
−
3.1291
p
Centimeters:
Maximum projection distance = (2.1593
×
diagonal size)
−
7.6782
Minimum projection distance = (1.6562
×
diagonal size)
−
4.2068