GDTF – What is it? What is it for?
GDTF is an abbreviation that stands for “General Device Type Format”. With that, you are actually just as smart as before. Therefore, let’s take another look and describe the current situation. When a new...
Attention, lumen! Peak values for photometric data
Many people know it from sound engineering when the power specifications of the loudspeakers or amplifiers promise a powerful device and you ends up hearing a transistor radio during the listening test. This trend...
Expertise for Lumen Beings: 3-point lighting
Video streaming, photo shoots, film shoots – everyone sees immediately: there are professionals or amateurs at work. But what makes the difference? Is it the camera? Usually not, because even with a mobile phone...
Expertise for Lumen Beings: White light
Expertise for Lumen Beings: Lighting specialist Herbert Bernstädt now offers everything you need in all areas of lighting and spotlight technology. In the first edition of the series, the experienced lighting expert and development...