23 pinhole cameras build home - diy, Happy pinhole camera day . find 23 pinhole cameras build home. small, big, paper, plastic tin, common: 1. free 2. build instructions build . learn pinhole camera day .. Nine homemade cameras: pinhole adventures part 1 - , Jon grepstad -depth page covering history, science construction pinhole cameras. picto benelux similar page, diy tips amazing gallery wooden cameras rené smets. smaller, simpler camera 35mm film matchbox, (!). Design build pinhole camera : 12 steps (, Determining focal length based pinhole size: pinhole created, determine distance film clear image. formula : focal length = (pinhole diameter / 0.03679) ^ 2 , units mm. : focal length = (0.3mm / 0.03679) ^ 2 focal length = (8.17438) ^ 2 focal length = 66.49mm , 0.3mm pinhole film.
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