A universal developer is a type of photographic developing solution that can be used for both films and papers. Often labelled as “MQ” or similar, these developers provide flexibility for photographers by allowing one solution to handle multiple types of photographic materials.
Photographers use universal developers to simplify their darkroom workflow, save space, and reduce the need for multiple chemicals. Understanding the capabilities and limitations of universal developers ensures consistent image quality, proper contrast, and optimal density across different film and paper types.