Appendix D: Throw Distance
020-100001-01 Rev. 01 (04/07)
D-11
0.67:1 Fixed
Lens
Image
Diagonal
Image Width
(W)
Throw
Distance
(TD)
Throw Distance Formula
Inch
cm Inch cm Inch cm
TD = 0.7058 x W + 2.23
66.9
169.8 58.3 148 43.4 110.1
Where W = image width (inch)
67.8
172.1 59.1 150 43.9 111.5
74.5
189.3 65.0 165 48.1 122.1
81.3
206.5 70.9 180 52.2 132.7
88.1
223.7 76.8 195 56.4 143.3
94.9
240.9 82.7 210 60.6 153.9
101.6
258.2 88.6 225 64.8 164.5
108.4
275.4 94.5 240 68.9 175.1
115.2
292.6 100.4 255 73.1 185.6
122.0
309.8 106.3 270 77.3 196.2
128.7
327.0 112.2 285 81.4 206.8
135.5
344.2 118.1 300 85.6 217.4
142.3
361.4 124.0 315 89.8 228.0
149.1
378.6 129.9 330 93.9 238.6
155.8
395.8 135.8 345 98.1 249.2
162.6
413.0 141.7 360 102.3 259.8
169.4
430.3 147.6 375 106.4 270.3
176.2
447.5 153.5 390 110.6 280.9
182.9
464.7 159.4 405 114.8 291.5
189.7
481.9 165.4 420 118.9 302.1
196.5
499.1 171.3 435 123.1 312.7
201.0
510.6 175.2 445 125.9 319.7
NOTE:
The TD formula is provided in
inches,
but the chart shows values in cm and inches
for easy reference. Make sure you are using
the correct unit of measurement when
calculating throw distance.
1.1:1 RP
Fixed Lens
Image
Diagonal
Image Width
(W)
Throw
Distance
(TD)
Throw Distance Formula
Inch
cm Inch cm Inch cm
TD = 1.194 x W + 2.67
42.8
108.7 37.3 94.7 47.2 119.9
Where W = image width (inch)
49.7
126.2 43.3 110.0 54.4 138.1
56.5
143.4 49.2 125.0 61.4 156.0
63.2
160.6 55.1 140.0 68.5 173.9
70.0
177.8 61.0 155.0 75.5 191.9
76.8
195.0 66.9 170.0 82.6 209.8
NOTE:
The TD formula is provided in
inches, but the chart shows values in cm and
inches for easy reference. Make sure you are
using the correct unit of measurement when
calculating throw distance.
HD
Lenses
f
Summary of Contents for DW6Kc
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