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Runco SC-1 Owner’s Operating Manual 21
PRE
L
IMINAR
Y
Throw Distance Ranges: Table 3-3 lists the available lens options for the SC-1 and their
associated throw ratios.
Table 3-3. SC-1 Lens Options and Throw Ratios
Lens Option (Note 2)
Throw Ratio
(Throw Dist. ÷
Screen Width)
(Note 3)
Throw Distance Range (in
inches, with 100-inch Wide
Screen)
Minimum Maximum
Signature A
1.78:1 screen 1.40-1.58 140 158
1.90:1 screen 1.32-1.50 132 150
Signature B
1.78:1 screen 1.57-1.93 157 193
1.90:1 screen 1.48-1.81 148 181
Signature C
1.78:1 screen 1.96-2.55 196 255
1.90:1 screen 1.84-2.40 184 240
2.35:1 screen (with CineWide) 1.49-1.93 149 193
Signature D
1.78:1 screen 2.37-3.19 237 319
1.90:1 screen 2.25-2.99 225 299
2.35:1 screen (with CineWide) 1.80-2.41 180 241
Signature E
1.78:1 screen 3.22-4.56 322 456
1.90:1 screen 3.02-4.28 302 428
2.35:1 screen (with CineWide) 2.44-3.45 244 345
Signature F
1.78:1 screen 4.30-6.00 430 600
1.90:1 screen 4.03-5.63 403 563
2.35:1 screen (with CineWide) 3.05-4.26 305 426
Signature G
1.78:1 screen 5.50-8.50 550 850
1.90:1 screen 5.16-7.97 516 797
2.35:1 screen (with CineWide) 3.91-6.03 391 603
Notes:
1. Throw distance does not affect image quality, provided these ranges are taken into account.
2. Only the Signature C, D, E, F and G lenses can be used with the optional CineWide (secondary
anamorphic) lens. Doing so affects the throw distances as shown here.
3. The SC-1 has a native resolution of 2048 x 1080, which is about a 1.9:1 aspect ratio. For 16:9
material, only the 1920 x 1080 area is used which is a 16:9 (1.78:1) aspect ratio. Most often, the
16:9 throw distance will be used. If used with CineWide or CineWide with AutoScope, only the
16:9 area will be used.