stop bath


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stop bath

[′stäp ‚bath]
(graphic arts)
When a negative or print is removed from the developer, it is usually placed in a stop bath to halt the action of the developer immediately; a common stop bath is a solution of 2 to 5% acetic or citric acid, or potassium metabisulfite.
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2 ounces of developer and 6/10 of an ounce of both stop bath and fixer are required for a beautiful mantle-bound 8x10 glossy, 8/10 and 4/10 for a 5x7, and about 4/10 and 2/10 for each wallet photo and proof print.
When you've accumulated enough pieces of photo paper for everyone, you're ready to assemble the following as well: four trays, developer, stop bath and fixer, watercolor brushes or cotton swabs, tongs and running water.
STOP BATH RUNNING: London Irish's Chris Sheasby holds up James Scaysbrook