A Study of the Mechanism of the Sabattier Effect

TLDR: In this paper, conditions for producing the Sabattier effect in Eastman fine grain release positive 5302 film were established and modifications of the second developer to develop more internal latent image by the addition of potassium iodide or to increase solution ~ physical development by adding sodium thiocyanate and sodium sulfite were performed.

Abstract: Conditions for producing the Sabattier effect in Eastman fine grain release positive 5302 film were established. Modifications of the second developer to develop more internal latent image by the addition of potassium iodide or to increase solution ~ physical development by the addition of sodium thiocyanate and. sodium sulfite were performed. These modifications made no significant change in the Sabattier effect. When chemical fog (from sodium borohydride) was substituted for the exposure during development , no reversal corresponding to the Sabattier effect was obtained.