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Original Articles

Studies of the Earliest Stage of Photographic Development by Measurement of Extinction

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Pages 192-195 | Received 20 Oct 1971, Published online: 23 Jul 2016
 

Abstract

A Study of the very beginning of development by extinction measurements sensitive down to 10-6. By this means it is possible to observe the change in extinction due to exposure as well as that due to development.

Résumé

On a étudié le tout début du développement par une technique optique très sensible permettant de mesurer des extinctions aussi faibles que 10-6. Gette méthode permet d’observer les modifications d’ extinction dues aussi bien à I’exposition qu’au développement.

Zusammenfassung

Es wurde eine Untersuchung des Anfangsstadiums der Entwicklung mit Hilfe von Extinktionsmessungen vorgenommen, die bis zu Extinktionen von 10-6 empfindlich waren. Mit ihnen ist es möglich, die Änderung in der Extinktion zu beobachten, die durch die Belichtung verursacht wird und die, welche auf die Entwicklung zurückzuführen is!.

Riassunto

Sono stati condotti studi sullo stadio più iniziale dello sviluppo mediante misure di estinzione sensibili a valori inferiori a 106-.

Con questo mezzo è possibile osservare cambiamenti nell’estinzione sia che siano dovuti all’esposizione che allo sviluppo.

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