Runco Video Xtreme VX-2i Owner's Operating Manual page 26

Installation
Table 3-3 lists the available lens options for the VX-2i and their associated throw ratios.
Table 3-3. VX-2i Lens Options
Lens Option (Note 2)
Proteus A
Proteus B
Proteus C
Proteus D
Proteus D with CineWide
Proteus E
Proteus E with CineWide
Proteus F
Proteus F with CineWide
Notes:
1. Throw distance does not affect image quality, provided these ranges are taken into account.
2. Only the Proteus D, E and F lenses can be used with the optional CineWide (secondary
anamorphic) lens. Doing so affects the throw distances as shown here.
Throw Ratio
÷
(in inches, with 100-inch Wide Screen)
(Throw Dist.
Screen Width)
0.64 (Fixed) For rear-screen installations only. Contact
Runco Technical Support for more information.
1.22 - 1.44
1.45 - 1.76
1.82 - 2.39
1.34 - 1.75
2.42 - 3.57
1.78 - 2.62
3.63 - 5.72
2.67 - 4.20
16
Throw Distance Range
Minimum Maximum
122
145
182
134
242
178
363
267
Runco VX-2i Owner's Operating Manual
144
176
239
175
357
262
572
420