To develop negatives and make prints in a custom darkroom, a photographer will need various materials and equipment, including a film developing tank, chemicals, an enlarger, and photographic paper. The process involves treating the film with a series of chemicals, including a developer, stop bath, and fixer. Once the negatives are developed, an enlarger is used to project the negative's image onto photosensitive paper, which is then developed, stopped, fixed, and washed to produce a final print.


Materials for developing negatives:

Film developing tank with reels
Graduated cylinders and containers for measuring and mixing chemicals
Film developer (e.g., Kodak D-76 or Ilford ID-11)
Stop bath (e.g., Ilfostop, or just use diluted white vinegar)
Fixer (e.g., Kodak Rapid Fixer or Ilford Rapid Fixer)
Wetting agent (e.g., Kodak Photo-Flo or Ilford Ilfotol)
Film squeegee or clean microfiber cloth
Darkroom thermometer
Timer or stopwatch
Scissors and bottle opener (to open film canister)
Film changing bag or light-tight space
Negative developing process:

Load the film onto the developing tank reels in complete darkness using a film changing bag or a light-tight space.
Mix the developer, stop bath, and fixer according to the manufacturer's instructions. Be sure to use the correct temperature and dilution for your specific film and developer combination.
Pour the developer into the tank and start the timer. Agitate the tank according to the developer's instructions (usually a combination of inversions and/or rotations).
After the required development time, pour out the developer and pour in the stop bath. Agitate for 30 seconds to 1 minute to halt the development process.
Pour out the stop bath and pour in the fixer. Agitate according to the fixer's instructions to remove any remaining unexposed silver halide from the film.
After fixing, wash the film thoroughly with running water to remove any remaining chemicals.
Add a few drops of wetting agent to a container of water and submerge the film in it for a few seconds. This helps prevent water spots when drying the film.
Remove the film from the tank and carefully squeegee or wipe off excess water with a microfiber cloth.
Hang the film to dry in a dust-free area.
Materials for making prints:

Enlarger
Safelight with appropriate filter (e.g., red or amber for black-and-white printing)
Photographic paper (e.g., Ilford Multigrade or other black-and-white paper)
Developing trays (3 trays - one for developer, one for stop bath, and one for fixer)
Paper developer (e.g., Ilford Multigrade or Kodak Dektol)
Stop bath (same as for film development)
Fixer (same as for film development)
Tongs or print squeegee
Timer
Easel or masking frame (to hold the paper during exposure)
Grain focuser (to help focus the enlarger)
Print washer or container for washing prints
Print making process:

Set up the enlarger and make sure it is aligned properly. Load the negative into the enlarger's negative carrier.
Mix the developer, stop bath, and fixer as before, but using the correct dilution for paper development.
Turn off any white light sources and turn on the safelight.
Make a test strip by placing a small strip of photo paper under the enlarger, covering parts of the paper, and exposing it for different lengths of time (e.g., 3, 6, 9, 12 seconds). Develop, stop, fix, and wash the test strip to determine the correct exposure
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