or even integrate it with other photography equipment. This level of customization is often not possible with commercial light meters, making the ArduMeter a versatile and valuable tool for ...

Colour temperature meters for photographic use are therefore constructed ... The meter readings are either shown on a colour temperature scale, expressed in Kelvin or as a deviation from 'normal ...

While refurbishing an ageing audio mixer, I decided that the level meters needed special attention. Their rather horrible 100 µA edgewise movements had VU-type scales, the drive electronics being just ...

ABSOLUTE SCALES OF PHOTOGRAPHIC AND PHOTO-VISUAL MAGNITUDES.—A great piece of photometric work on which the 60-in. reflector of the Mount Wilson Observatory is engaged is the determination of ...