File:Gossen Sixtar-7595.jpg

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Deutsch: Gossen Sixtar Belichtungsmesser (1960er Jahre)

Auf der großen transparenten Einstellscheibe wird vorab die Filmempfindlichkeit in ASA oder DIN eingestellt. Zur Belichtungsmessung bringt man mittels Rändelrad den Rundzeiger mit dem geraden Messzeiger zur Deckung, wodurch auf den beiden Außenskalen gültige Kombinationen aus Verschlusszeit und Blende sowie im unteren Fenster in rot der Lichtwert angezeigt werden.
Bei Drücken des schwarzen Bedienungsknopfs links wird mechanisch ein Graufilter verschoben, das im Ruhezustand vor dem CdS-Fotowiderstand liegt, und dadurch die (normalerweise reduzierte) Messempfindlichkeit auf voll umgeschaltet.

Die weiße Diffusorkalotte lässt sich vor den CdS-Fotowiderstand schieben, zur Licht- statt Objektmessung.
English: Gossen Sixtar light meter (1960s)

On the large transparent dial, film speed is preset in ASA or DIN units. For light metering, the large knurled wheel is turned to move the round pointer over the galvanometer needle, whereby valid combinations of shutter speed and aperture are shown on the adjacent external scales as well as the exposure value in the bottom window in red.
Pressing the black button on the left mechanically shifts away a grey filter normally sitting in front of the CdS photoresistor, thus changing the (normally reduced) sensitivity to full.

The white diffusing hemisphere can be shifted in front of the CdS photoresistor for incident rather than reflected light metering.
Date 21:47:01.19
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Raimond Spekking    wikidata:Q108103612
 
Raimond Spekking
Description photographer, Wikimedian and Wikipedian
Location of birth Emmerich am Rhein
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Cologne Edit this at Wikidata
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creator QS:P170,Q108103612
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