stop bath
Học thuậtThân thiện
Definition
- Noun:
- A chemical solution used in photographic processing: A "stop bath" is an acidic solution, typically a dilute solution of acetic acid, used to immediately halt the development of photographic film or paper by neutralizing the alkaline developer.
Usage Examples
- Noun:
- After development, the film is transferred to the stop bath for 30 seconds.
- A proper stop bath ensures the development process ceases completely.
Advanced Usage
- Technical Process: In darkroom photography, the "stop bath" is a critical step between the developer and the fixer. It prevents overdevelopment and contamination of the fixing bath.
- Skipping the stop bath can lead to inconsistent results and shorten the life of your fixer.
Variants and Related Words
- Stop (verb): To cause a process or action to end.
- The chemical stops the development reaction.
- Acetic Acid (noun): The weak acid commonly used as the active ingredient in a stop bath.
- Developer (noun): The alkaline solution that makes the latent image visible, which the stop bath neutralizes.
- Fixer (noun): The subsequent chemical bath that makes the image permanent.
Synonyms
- Acid stop
- Stop solution
Related Phrases
- To use a stop bath: The act of employing this solution in the photographic process.
- It is recommended to use a stop bath for archival print processing.
Noun
- an acid bath used to stop the action of a developer