Link on how to develop film.
A latent image is an invisible image produced by the exposure to light of a photosensitive material such as photographic film. When photographic film is developed, the area that was exposed darkens and forms a visible image. After you have exposed and rewound your film, it is necessary to develop it so the latent images are made visible.
The first step is to load your film onto a reel in total darkness and place it into a daylight tank. Do not force the film if it becomes difficult to load. Back off and try again. Buckled film touches other parts of the roll, preventing those parts from developing. This is called a pressure mark. Place the reel and spindle (if using the plastic daylight tank) into the tank and secure the lid. You can bring it into the light now. Do not set it down without labeling your tank. Someone may open it! Prepare the chemicals. Remember, the fixer is saved. Get a funnel ready. The only chemical that goes down the drain is the developer after it is used. The fixer and developer for film is different then the fixer and developer for paper. Get the timer ready!
Agitation: The rocking motion used during processing to keep fresh chemicals in contact with the film.
Density: The amount of silver left on film after exposure and development. Noted by light or dark areas on the negative or print.
Developing Tank: A light-tight container that holds film and solutions during processing. A light baffle allows the addition and removal of chemicals and water during development.
Emulsion: The light sensitive layer of photographic material. It consists of silver halide crystals suspended in gelatin.
Hypo Clearing Agent: A chemical that rapidly removes hypo (fixer) from a photographic emulsion. It greatly reduced wash time for film and paper.
Rapid Fixer: Fixer that will complete fixing of a negative or print in reduced time.
Wetting Agent: A chemical used after washing negatives. Surface tension is lowered, resulting in even drying without water spots.
Density: The amount of silver left on film after exposure and development. Noted by light or dark areas on the negative or print.
Developing Tank: A light-tight container that holds film and solutions during processing. A light baffle allows the addition and removal of chemicals and water during development.
Emulsion: The light sensitive layer of photographic material. It consists of silver halide crystals suspended in gelatin.
Hypo Clearing Agent: A chemical that rapidly removes hypo (fixer) from a photographic emulsion. It greatly reduced wash time for film and paper.
Rapid Fixer: Fixer that will complete fixing of a negative or print in reduced time.
Wetting Agent: A chemical used after washing negatives. Surface tension is lowered, resulting in even drying without water spots.