Photography — General purpose photographic exposure meters (photoelectric type) — Guide to product specification
NORM herausgegeben am 1.8.1974
Bezeichnung normen: ISO 2720:1974
Ausgabedatum normen: 1.8.1974
Zahl der Seiten: 7
Gewicht ca.: 21 g (0.05 Pfund)
Land: Internationale technische Norm
Kategorie: Technische Normen ISO
Description / Abstract: Specified are calibration levels and test conditions for general-purpose photoelectric exposure meters which measure reflected or incident light, or both, in determining photographic exposure for camera use. The specifications apply to exposure meters containing a light-sensitive element, and indicating electrical instrument, a directional system and a calculator to correlate the meter indications with the camera exposure settings.