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Ellipsoidals

Common Ellipsoidal Beam Sizes 

When calculating the beam diameter of a given fixture, you multiply its Multiplication Factor (MF) X the throw distance. The MF for many common beam spreads and lens sets are listed below. Please note these are not precision measurements, only approximate measurements. Example for a 5° fixture at a distance of 50', you would multiply 50 X .09 to find a beam diameter of 4.5'.

8" Lens
6" Lens

S4/Leko

Phoenix/ Pacific

MF #

Beam at 10'

Beam at 25'
Beam at 50'
Beam at 75'
Beam at 100'
0.09
4'-6"
6'-9"
9'-0"
8" X 14"
6" X 22"
10 °
10 °
0.17
8'-6"'
12'-9"
17'-0"
8" X 8"
6" X 16"
19 °
20 °
0.32
3'-2"
8'-0"
16'-0"
24'-0"
6" X 12"
26 °
30 °
0.46
4'-8"
11'-6"
23'-0"
6" X 9"
36 °
40 °
0.64
6'-5"
16'-0"
4.5" X 6"
50 °
50°
0.93
9'-4"
90 °
 
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