Film developers high-contrast

Currently, to develop more highly functionalized LC devices, intensive studies are being carried out on electrically controllable polymer/LC composite films with such advantageous features as high electric field response, high contrast, and wide viewing angle, as well as reverse-mode and haze-free characteristics. 96-100 ... 

Uses Developing agent for film or paper gives warm black images with caustic soda, gives rapid development with high contrast. 

This formula is recommended for tray or tank development of cine title film and positive film to obtain high-contrast results. 

ASA films, such as Kodak Tri-X Pan for black and white prints or Ektachrome for color slides, are suitable for many applications. These films can be exposed at 800 or 1600 ASA and push-processed in a high-contrast developer. A combination that has found favor in many laboratories is that of Kodak Tri-X with the Diafine two-bath developer (1), which provides an ASA of 1600. In general, black and white film has a finer grain and is suitable in most situations, the exceptions being doublelabeling procedures in which both fluorophores are to be photographed simultaneously or the preparation of color slides for presentations. 

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