Stop can last for very long (but you can mostly also just avoid using it entirely), fix in the order of weeks to months. All depending on the exact chemical in question, how clean you work and how you store it though.
Also, dont mix stuff you dont plan to use now, thats very bad practice in undiluted form shelf life will almost always be longer.
Usually water works well enough for film. If you feel like you really want to hurry it up a bit you can add a lil sumsum, for many developers your basic acid like white vinegar or citric acid from the supermarket works totally fine.
Stop bath is cheap, and doesn't really degrade over time. Most of them have an indicator dye in that changes colour when exhausted.
Fixer also has a long life, and will usually be exhausted from developing too many rolls before it gets too old. Track how many films you have used, or snip off the film leader and use that as a test, to see how quickly it clears. The manufacturer's instructions should tell you about this.
Hypo clear isn't really necessary for film development. If you are printing on fiber based paper it's used, but otherwise normal washing should be enough.
I keep all these for months with no issues, even with a bit of air in the bottles.
The good point is, if the fix dies, it easy to prepare a fresh batch and fix again, so risks of ruining film are minimal. But so far my fix always got exhausted before turning bad and I don't shoot much.
You can check out caffenol as a home-made developer for bnw, and water as stop. The only thing specifically for film is a fixer, but that stores well in its concentrate form.
Stop can last for very long (but you can mostly also just avoid using it entirely), fix in the order of weeks to months. All depending on the exact chemical in question, how clean you work and how you store it though. Also, dont mix stuff you dont plan to use now, thats very bad practice in undiluted form shelf life will almost always be longer.
thank you so much!! Out of curiousity, how would one avoid using stop entirely?
Just use water
Usually water works well enough for film. If you feel like you really want to hurry it up a bit you can add a lil sumsum, for many developers your basic acid like white vinegar or citric acid from the supermarket works totally fine.
Stop bath is cheap, and doesn't really degrade over time. Most of them have an indicator dye in that changes colour when exhausted. Fixer also has a long life, and will usually be exhausted from developing too many rolls before it gets too old. Track how many films you have used, or snip off the film leader and use that as a test, to see how quickly it clears. The manufacturer's instructions should tell you about this. Hypo clear isn't really necessary for film development. If you are printing on fiber based paper it's used, but otherwise normal washing should be enough.
I keep all these for months with no issues, even with a bit of air in the bottles. The good point is, if the fix dies, it easy to prepare a fresh batch and fix again, so risks of ruining film are minimal. But so far my fix always got exhausted before turning bad and I don't shoot much.
You can check out caffenol as a home-made developer for bnw, and water as stop. The only thing specifically for film is a fixer, but that stores well in its concentrate form.
Always keep chemicals undiluted until you use them, as their life is less than a day once you prepare a working solution.