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10. Installation (Table Top)
Standard Lens Throw Calculations
SS 40 60 80 100 120 150 180 200 250 300 400 500 600
1480 2260 3030 3810 4580 5740 6900 7680 9610 11550 15420 19290 23160
N
58
1/4
89
119
2/7
150
180
1/3
226
271
2/3
302
1/3
378
1/3
454
5/7
607
759
4/9
911
4/5
1900 2880 3860 4840 5820 7290 8760 9740 12190 14640 19540 24440 29350
a
M
74
4/5
113
2/5
152
190
5/9
229
1/7
287
344
7/8
383
1/2
480
576
3/8
769
2/7
962
1/5
1155
1/2
X-
305
X-
457
X-
610
X-
762
X-
914
X-
1143
X-
1372
X-
1524
X-
1905
X2286
X-
3048
X-
3810
X-
4572
N
x-12 x-18 x-24 x-30 x-36 x-45 x-54 x-60
x-75
1/2
x-90
1/2
x-120
1/2
x-150
1/2
x180
1/2
b
M X-0
X-
392
X-
545
X-
697
X-
850
X-
1002
X1231
X-
1459
X-
1612
X-
1993
X-
2374
X3136 X3898
X-
4660
N
x-15
1/2
x-21
1/2
x-27
1/2
x-33
1/2
x-39
1/2
x-48
1/2
x-57
1/2
x-63
1/2
x-78
1/2
x-93
1/2
x-123
1/2
x-153
1/2
x-183
1/2
c
M X-88 (3 1/2)
81 122 163 203 244 305 366 406 508 610 813 1016 1219
d N
3 1/5 4 4/5 6 3/7 8 9 3/5 12 14 2/5 16 20 24 32 40 48
16