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Issue link: http://www.schoolartsdigital.com/i/768117
& Pinhole Photography Maiah Deogracias, With Love, Emma. Pinhole photograph. Emily Larson, Da dreaming. Negative pinhole photograph. & Pinhole Photography on the side of the container where you want to place the pinhole. The sub-hole should be ¼ " and centered on the side of the box. 3. Carefully cut a 1" square of alumi- num from a can. Using a needle, push a tiny hole through the center of the aluminum. Push only the tip of the needle through, which will allow for the smallest pos - sible hole. The smaller the hole, the greater the depth of field. If the hole creates a slight burr on the back side of the aluminum, use sandpaper to smooth it away. This becomes the lens. 4. Using black electrical tape, tape the pinhole lens over the sub-hole on the inside of the container. Be sure to tape the aluminum down on all four sides, using slight pressure to avoid light leaks below the tape. 5. Place another piece of electrical tape over the outside of the pinhole to act as your shutter. Once you are ready to shoot, remove the tape for your desired exposure time and then reapply it. After students have successfully created their own pinhole cameras, they can begin loading photographic paper into them (start with paper before trying film—you get results fast and it's less expensive). Processing Photographic Paper Once an exposure is made, students will need to process their photographic paper in a darkroom. The images will be "negatives," which means that values will be reversed—blacks will be white and whites will be black. At this point, they'll need to evaluate their exposure time. If their images are too light, they need to add time to their exposures. If their images are too dark, they need to subtract time from their exposures. T his chart gives students a starting point with exposure time. The deeper the box, the longer it takes to expose the paper: Exposure Time The images will be projected inside of students' pinhole cameras upside- down and backwards. Point out how this affects the text on clothing or signs. Once students have processed their negatives, they can scan their images into a computer to invert them; blacks become white and the whites become black—"positives." Patience—Practice! Students will need lots of patience when first shooting with pinhole cameras. Their exposures will vary with the amount of light outside, the direction in which they shoot, and the time of day . They should start by photographing outside on a sunny day with the initial exposure time. Make sure they photograph around the same time each day until they understand their exposure times. Nicole Croy teaches high-school photogra- phy at Carroll High School in Fort Wayne, Indiana. This lesson is adapted from the textbook Focus on Photography (available from Davis Publications) by Hermon Joyner and Kathleen Monaghan. 1" 1 second 3" 3 seconds 5" 6 seconds 10" 3 0 seconds Depth of Box Exposure Time SCHOOLARTSMAGAZINE.COM 39