This is what I've learnt/ re-capped this week:
Fixer solution= removes undeveloped Silver Halide crystals from emulsion in films.
The main cleaning agent is Ammonium thiosulphate. Also present are:
Aluminium salts= tanning agent which hardens and preserves emulsion
Acetic acid= acidifier and neutralises the developer
Sodium sulphite= preservative.
H20= solvent.
Troubleshooting
Underexposure= Either inadequate exposure or developer time, out-of-date developer solution, or too low temperatures.
Overexposure= Either too long exposure time or exposed to light.
Creases/ Folds
Static electricity
Film placed Backwards- makes a tire track Herringbone effect, where the foil is projected onto the emulsion layer
Interesting stuff!
*Images from Google*
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