Taking An Instant Photograph
Edwin Land's original idea behind instant photography was to create a photographic system that was seamless and easy for anyone to use. The first Roll film cameras required the photographer to use a light meter to take a reading of the light level, then to set the exposure setting on the lens. Then the lens was focused and the subject framed and the picture was taken, the photographer flipped a switch and pulled the large tab in the back of the camera to pull the negative over the positive, through some rollers to spread the developing agent. After the picture developed inside the camera for the required time, the photographer opened the small door in the camera back and peeled the positive from the negative. To prevent fading the black and white positive had to be coated with a fixing agent, a potentially messy procedure which led to the development of coaterless instant pack film.
Pack film cameras operated in a similar manner except for the fact that most of these cameras had automatic exposure. The development of the film required the photographer pull two tabs, the second tab which pulled the positive/negative "sandwich" from the camera, where it developed outside the camera. If the temperature was below 60°F, the positive/negative "sandwich" was placed between two aluminum plates and placed either in the user's pocket or under their arm to keep it warm while developing. After the required development time (15 seconds to 2 minutes), the positive was peeled apart from the negative.
Integral film cameras, such as the SX-70, 600 series, Spectra, and Captiva cameras went a long way in accomplishing Edwin Land's goal of creating a seamless process in producing instant photos. The photographer simply pointed the camera at the subject, framed it, and took the photo. The camera and film did the rest, including adjusting the exposure settings, taking care of focusing (Sonar autofocus models only), utilising a flash if necessary (600 series and up), and ejecting the film, which developed without intervention from the photographer.
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Famous quotes containing the words instant and/or photograph:
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—Henry David Thoreau (1817–1862)
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