THE EFFECT OF AMOUNT OF LIGHT EXPOSURE, TIME OF LIGHT EXPOSURE AND TYPE OF FILTER USED ON THE QUALITY OF A PHOTOGRAPH

The purpose of this experiment was to determine what factors affected the quality of a developed photograph and which combination of factors produced the greatest quality photograph. The results of this experiment are important when wanting to develop the best photograph. In the trials, the amount of time exposure during the developmental process ranged from 15 seconds to 25 seconds, the amount of light exposure during these time periods varied from 1 square centimeter to 5 square centimeters and, to differentiate between contrast, the grade of a filter varied from 1 (least amount of contrast) to 5 (most amount of contrast). The trials consisted of combinations of the different factors and standard trials were used as a comparison. The data was analyzed using a 3-Factor Design of Experiment, and, from this test, it was determined that filter grade, the amount of light exposure and the combination of the amount of light exposure and the time of light exposure had an effect on the overall quality of a developed photograph. In the end, the best quality photograph underwent a developmental process utilizing 1 square centimeter of light exposure (low) for 25 seconds (high), and a filter grade of 1 (low).

Research Done By:

Brandon Frazer
L'Anse Creuse High School

Lydia Render
L'Anse Creuse High School

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