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Film development Edit

Definition:

Process overview & basic theory Edit

Used materials Edit

These assume a 500 ml tank is being used to develop a single roll of film (either 135 or 120). Adjustments for other situations should be straightforward, except maybe for sheet film.

Non-consumable Edit

Required Edit

  • 1 big water container, sufficient to put all the materials in with slack space
  • 1 thermometer (not the clinical type)
  • 1 daylight developing tank
  • spiral(s) (must match tank if using a plastic one)
  • 1 liquid measure (measuring graduate), at least 1 litre capacity
  • 1 container for each chemical you will use (600ml capacity or more)
  • 1 pair of film weights per film being developed
  • 1 pair of scissors

The big water container serves to stabilize the temperature of all the components. A temperature shock might damage the film being processed.

You will use at least developer and fixer, so you will need at least 2 containers, more if you use optional chemicals. Label your chemicals clearly in a way that it won't go off with water; don't mismatch the containers and chemicals.

Film weights are a a must, but the don't need to be "official". Clothes pegs will do the job with no side-effects.

Optional Edit

  • funnel(s) to pour liquids
  • stirrer(s) to mix them
  • medicine syringe(s) (5-10ml)
  • 1 dark changing bag
  • 1 canister opener or bottle opener
  • 1 film retriever (if you don't want to open the canisters)
  • stopwatch (there are some specialized for photography too)

Consumable Edit

Required Edit

  • developer
  • fixer

Both in enough quantity to fill your tank (it's good practice to prepare a little more, just in case some of it leaks).

A note on hardening fixers: they are usually not needed for most films. They have also a downside: it's much harder to wash them off your film after use (see procedure below).

Optional Edit

A note on "optional" chemicals: they are part of the development process. The fact that you can develop film without them (or their official formula - see chemicals) doesn't mean they are not needed. Good, consistent results are harder to achieve without them, or archivability issues may arise. You've been warned.

  • stopper
  • washing aid (hypo remover)
  • wetting agent (surfactant)

Step-by-step procedure Edit

Sources Edit


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