Sizes Available Sizes and CAT numbers may differ from country to country. Sheets Per Package Size in. In order to keep exposure times within reason, contact printing papers, such as AZO Paper, are made with a relatively low speed. Therefore, it's not practical to use contact papers with an enlarger as a light source. A contact printer is a glass-top box with exposing lights and a safelight inside, and hinged pressure cover over the glass.
Switches control the lights that allow different intensities to various parts of the image.
Observe precautionary information on product labels and Material Safety Data Sheets. Developing Immerse prints face up, flexing the paper so the entire surface gets wet as it goes into the developer. Bath A stop bath is recommended to rapidly terminate development and to preserve the fixing bath. This method is recommended when processing a large number of prints. Proper fixing is important.