Schnellphotometer Photometer

Year:19??
Manufacturer: Carl Zeiss – Jena (DE)
Materials: aluminum, steel, brass, optical glass
Dimensions: L = 106 mm; P = 90 mm; H = 90 mm

Produced by Carl Zeiss in Jena, SCHNELLPHOTOMETER PHOTOMETER is a precision instrument used to measure the transparency or density of a photographic plate. The plate is positioned on a sliding carriage, while a light beam passes through the sample and is detected by a photovoltaic cell connected to a calibrated galvanometer.

The instrument allowed both the analysis of spectral line profiles and the determination of stellar magnitudes as a fixed aperture photometer. A versatile and compact device, indispensable for the detailed study of spectra and astronomical photometry.