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5 2 L i g h t i n g<br />

Dr. Markus Ludwig,<br />

Head of Product<br />

Management Lighting<br />

Dr. Hans Kiening,<br />

Head of Quality Control<br />

Labs at ARRI<br />

Skin Tones and Sensitivity<br />

The Determination of<br />

Static and Dynamic Quality<br />

Parameters<br />

With the flexibility and dynamic features of LED technology, it was just<br />

a question of time until these advantages were fully exploited for<br />

quality control and testing applications. Over the past months teams<br />

from the camera and lighting units at ARRI have joined this trend to utilize the<br />

full potential of LEDs in combined projects with our R&D and testing labs.<br />

We are confident that this “camera-light-coupling” will enable a whole new<br />

world of measuring devices and new features to be developed for service<br />

teams and end users.<br />

Intelligent, Dynamic LED Lights<br />

for Special Applications<br />

The three busts were used to verify the skin<br />

tone reproduction of camera systems<br />

As part of a bachelor thesis novel approaches<br />

to the pictorial assessment of camera systems<br />

have been developed. One component of<br />

this work has now been realized in close collaboration<br />

between ARRI Quality Management<br />

in Munich and ARRI Lighting in Stephanskirchen.<br />

For a reproducible analysis of the very important<br />

aspect of skin tone reproduction of<br />

camera systems, artificial busts have been<br />

created by special effects make-up artist<br />

Birger Laube ( PA N D O R U M ). The color of<br />

these busts largely corresponds to the color<br />

of human skin tones.<br />

The three busts with European, African and<br />

Asian skin tones were placed in a studio<br />

set-up, which is lit with innovative LED illumination.<br />

This allows the verification of the skin<br />

tone reproduction of camera systems under<br />

realistic, yet reproducible conditions in artificial<br />

light as well as daylight situations. Another<br />

application of this test scenario is the<br />

comparison of camera systems in terms of<br />

sensitivity and noise.<br />

Simon Pott

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