Fotospeed SB50 Odourless Indicator Stop Bath

- Makes for a more pleasant darkroom environment due to its odourless formula
- An odourless citric acid stop bath with indicator dye to warn of exhaustion.
- SB50 dilutes 1+19 with water.
- Stop Bath arrests development immediately on contact to ensure clear highlights in paper and low fog on film.
- Protected fixer life and performance. No alkali carry-over from the developer.