The greater the amount of light hitting the paper, the darker the print since more silver halide grains are exposed. This assumes all other conditions are held constant. The directions for the first part are listed in Section 1. In the second section of the experiment you will prepare a developer by weighing out and mixing the necessary chemicals. You will then use the conditions determined in the first part to prepare a contact print with your own developer.
Most photographic developers have several components in common.
Used fixer has silver in it and must be put in the acqueous waste container. Obtain several sheets of photographic paper. Set up the exposing light as shown in the Figure below. Using only safety lights, remove a piece of photographic paper from its storage space and place it directly under the light with the emulsion side up. Place the negative on top of the paper and put a glass slide on top of the negative.