pinhole photography. what is pinhole photography? pinhole photography is lensless photography. a...

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PINHOLE PHOTOGRAPHY Slide 2 WHAT IS PINHOLE PHOTOGRAPHY? Pinhole photography is lensless photography. A tiny hole replaces the lens. Light passes through the hole; an image is formed in the camera Slide 3 HOW IT WORKS Slide 4 We see things because light rays reflect off of them and these reflected rays form an image on the retina. A camera is a mechanical eye. pupil = pinhole eyelid = shutter retina = film HOW IT WORKS Slide 5 CHARACTERISTICS OF PINHOLE PHOTOGRAPHY Pinhole images are softer less sharp than pictures made with a lens. The images have nearly infinite depth of field. Images are exposed on film or paper negative or positive; black and white, or color. Slide 6 Pinhole images tolerate little enlargement. To get clear, sharp pictures, the camera must remain very still while the shutter is open. Exposure time varies in length ranging from half a second to several hours. CHARACTERISTICS Slide 7 Davison, George English (b. Dresser, 1854-1930) TITLE ON OBJECT: The Onion Field 1889 photogravure print 15.4 x 20.5 cm. FIRST KNOWN PINHOLE CAMERA PHOTOGRAPH Slide 8 A pinhole camera is a small, light-tight can or box with a black interior and a tiny hole in the center of one end. You can design it to accept roll or sheet film. The two ends of the camera are parallel. The end opposite the pinhole is flat so that the film is held in a flat plane. The pinhole has a cover to prevent light from entering the camera when you aren't taking a picture. PINHOLE CAMERA Slide 9 Pinhole cameras may have one pinhole or several. Multiple pinhole cameras produce overlapping images or, with certain designs, panoramic images. PINHOLE CAMERA Slide 10 EXAMPLES MAT MATCHBOX ELARGER CAMERA FILM CANISTER BOX COFFEE-MATE CONTAINER Slide 11 EXAMPLES Slide 12 Slide 13 Slide 14 EXAMPLES S Slide 15 / nPlans/pinholeCamera/pinholeCanBox.shtml B BIBLIOGRAPHY