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Camera Aperture And Shutter Speed: At first the "open flash" method was used: with the Camera aperture and shutter speed on a tripod, the shutter was opened, the flash bulb set off, and the shutter was closed. Later the release of the shutter was mechanically synchronized with the discharge of electric current and the Camera aperture and shutter speed could be held in hand. For convenience the flash gun (battery case, flash bulb, and reflector) was fastened to the side of the Camera aperture and shutter speed.Eastman's most important contribution, however, was t the design of the Camera aperture and shutter speed, but providing a photofin-u'ng service for his customers. The Camera aperture and shutter speed was loaded len sold; its $25 cost included processing. A contact int from each good negative was made and neatly Dunted on a gilt-edged chocolate-brown card. All the xkk owner had to do was point the Camera aperture and shutter speed at the sub-:t, release the shutter by pressing a button, wind on film r the next exposure, and recock the shutter by pulling string that wound up its clockwork mechanism.
The original Kodak was a box Camera aperture and shutter speed, 3:/4 x 3% x k inches with a fixed-focus lens of 27mm focal length d aperture f/9, fitted with an ingenious cylindrical, or rrel, shutter. It differed from most of its competitors cause it used film in a roll long enough for 100 nega-res, each with a circular image 2l/2 inches in diameter. : first this "American Film" was paper, coated with a bstratum of plain gelatin and then with light-sensitive latin emulsion; after processing, the hardened gelatin aring the image was stripped from the paper base. This licate operation became obsolete with the introduction "transparent film" on a clear plastic base of nitrocel-ose in 1891. |
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