I have been testing for Adox 100 fixing times in Ilford Rapid fix;
- After three minutes in pure fixer the piece of film is almost clear but a very thin cloudy layer refuses to dissolve.
- I give up and remove the piece of film and run it under water. It instantly clears.
Now I have three questions. Firstly: what is the reason for a stubborn cloudy layer that only dissapears when run under water? Secondly: Is this a known characteristic of Adox films? Thirdly/finally: how do you conduct an accurate test when you are never quite sure when it has cleared in the fixer?
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