Test Results

Written by:

Camrin Petramale & Neil Adamson

How to read the Data

We have decided to display our findings using a customized version of “false color” that uses the color spectrum to visualize the light’s falloff. Each discrete color represents one-quarter of the previous amount, conforming to the behavior of a traditional point-source doubling in distance and the Inverse Square Law.

We've included the calculated illuminance at 1 meter ("E") along with the regression coefficient to allow for calculation at any distance (in meters). The largest dimension and the distance to 5x that length are listed below the distribution method. Daylight balanced sources are denoted with a blue stripe, while tungsten sources show an orange stripe.

Results are sorted by highest to lowest "E" value and can be filtered out by color-temperature, category, or manufacturer.

Color Legend

100,000 lux or higher

25,000 Lux

6,250 Lux

1,562.5 Lux

390.625 Lux

97.656 Lux

24.414 Lux

Point Source Example

Manufacturer

Fixture Category

Focus/Distribution

Fixture Name

Color Temperature

6,250 lux

1 meter

694.4 lux

3 meters

250 lux

5 meters

127.6 lux

7 meters

62.5 lux

10 meters

Illuminance (lux) at given distance (meters)

Trend line equation can be used to find Lux at any distance

Lux = "E" x "Distance" ^ "regression coefficient"

E = 6250   Regression Coefficient = -2

Illuminance Falloff

Luminaire Comparisons

Produced by:

Light Modifiers Rental
 

Written by:

Camrin Petramale & Neil Adamson

Results

Filter Search by Color Temperature
Filter Search by Category
Filter Search by Manufacturer

ARRI

M18

Spot

5600K

Open-Faced Reflector (Other)

>100,000 Lux

1 meter

73,770 Lux

3 meters

26,830 Lux

5 meters

13,781 Lux

7 meters

6,801 Lux

10 meters

E =

649505

Regression Coefficient =

-1.98

16.8"

2.13

(

)

K5600

Joker 800

Standard Reflector

5600K

Open-Faced Reflector (Parabolic)

>100,000 Lux

1 meter

85,655 Lux

3 meters

33,979 Lux

5 meters

18,481 Lux

7 meters

9,690 Lux

10 meters

E =

625666

Regression Coefficient =

-1.81

7.5"

0.95

(

)

K5600

Jo-Leko 800

19º Lens (ETC)

5600K

Lensed Reflector (Ellipsoidal)

>100,000 Lux

1 meter

68,584 Lux

3 meters

24,690 Lux

5 meters

12,597 Lux

7 meters

6,173 Lux

10 meters

E =

617258

Regression Coefficient =

-2

5"

0.63

(

)

K5600

Jo-Leko 800

26º Lens (ETC)

5600K

Lensed Reflector (Ellipsoidal)

>100,000 Lux

1 meter

53,147 Lux

3 meters

19,133 Lux

5 meters

9,762 Lux

7 meters

4,783 Lux

10 meters

E =

478326

Regression Coefficient =

-2

5"

0.63

(

)

ARRI

1200 Fresnel

Fresnel - Spot

5600K

Lensed Reflector (Fresnel)

>100,000 Lux

1 meter

38,231 Lux

3 meters

15,799 Lux

5 meters

8,827 Lux

7 meters

4,763 Lux

10 meters

E =

255764

Regression Coefficient =

-1.73

11.25"

1.43

(

)

ETC

Source Four

19º Lens (ETC)

3200K

Lensed Reflector (Ellipsoidal)

>100,000 Lux

1 meter

27,124 Lux

3 meters

9,765 Lux

5 meters

4,982 Lux

7 meters

2,441 Lux

10 meters

E =

244113

Regression Coefficient =

-2

5"

0.63

(

)

ETC

Source Four

26º Lens (ETC)

3200K

Lensed Reflector (Ellipsoidal)

>100,000 Lux

1 meter

20,411 Lux

3 meters

7,348 Lux

5 meters

3,749 Lux

7 meters

1,837 Lux

10 meters

E =

183697

Regression Coefficient =

-2

5"

0.63

(

)

K5600

Joker 800

PAR - Wide Lens

5600K

Lensed Reflector (PAR)

>100,000 Lux

1 meter

16,348 Lux

3 meters

6,162 Lux

5 meters

3,241 Lux

7 meters

1,640 Lux

10 meters

E =

133283

Regression Coefficient =

-1.91

7.5"

0.95

(

)

K5600

Joker 800

PAR - Medium Lens

5600K

Lensed Reflector (PAR)

>100,000 Lux

1 meter

17,386 Lux

3 meters

6,968 Lux

5 meters

3,815 Lux

7 meters

2,015 Lux

10 meters

E =

124234

Regression Coefficient =

-1.79

7.5"

0.95

(

)

Fiilex

Mag 4k 1st Edition

18º Reflector (Fiilex)

5600K

Open-Faced Reflector (Parabolic)

>100,000 Lux

1 meter

12,576 Lux

3 meters

4,668 Lux

5 meters

2,430 Lux

7 meters

1,217 Lux

10 meters

E =

105960

Regression Coefficient =

-1.94

7"

0.89

(

)

K5600

Jo-Leko 800

50º Lens (ETC)

5600K

Lensed Reflector (Ellipsoidal)

>100,000 Lux

1 meter

12,862 Lux

3 meters

4,873 Lux

5 meters

2,571 Lux

7 meters

1,306 Lux

10 meters

E =

103712

Regression Coefficient =

-1.9

5"

0.63

(

)

Mole-Richardson

2K "Baby Junior"

Fresnel - Spot

3200K

Lensed Reflector (Fresnel)

94,997 Lux

1 meter

10,790 Lux

3 meters

3,924 Lux

5 meters

2,016 Lux

7 meters

995 Lux

10 meters

E =

94997

Regression Coefficient =

-1.98

5.75"

0.73

(

)

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