Polaroid cameras

Instant films accounted for 10.9% of film sales in 1989 (105), and there were 12 million instant cameras in use in the United States in 1988 (106). Polaroid reported sales of about 3.1 million consumer cameras worldwide in 1990, compared with 3.0 million in 1989 and 3.5 million in 1988 (107). In Japan, Fuji accounted for 6% of instant camera sales and Polaroid for 94% in 1989 (108). Fuji has estimated 1991 sales of instant cameras in Japan, including Polaroid cameras, at 400,000 (109). 

Polaroid additive color films, 29 308-311 Polaroid BadgeCam, 29 323 Polaroid camera, 29 277 Polaroid ColorShot Digital Photo Printer, 29 321... 

Suppose that you are using a Polaroid camera outdoors during the winter. You want your photographs to develop faster. Suggest a way... 

Mark the bands of interest with a pencil or photograph the blot using a Polaroid camera equipped with an orange filter. The exposures range from 30-120 s Notes 8 and 9). 

Visualize bands on the transilluminator and take a picture with the Polaroid camera to file of the results. Make sure no amplified material is observed in the lanes corresponding to the various negative controls. 

The measuring equipment needed to follow transient absorbance can be as simple as a fast oscilloscope and a Polaroid camera. But a transient recorder coupled to signal averager, xy recorder, and computer have a certain advantage. 

Flat plate cells are usually made with electrodes spread on screens or grids like lead-acid batteries or industrial Ni-Cd batteries. In these types of batteries the electrodes itself are good metallic conductors To build manganese dioxide batteries as plate cells good conductive screens would be needed. A well known example for a bipolar Mn02-Zn cell in commercial production is the 6 Volt Polaroid camera film battery, a primary battery with a weakly acidic electrolyte. 

Instant photography (Edwin Herbert Land) Land develops the simple process to make sheets of polarizing material. He perfects the Polaroid camera in 1972. 

A Nikon stereomicroscope fitted with a polaroid camera was used to produce photomicrographs at magnifications of lOOX, 200X, and 400X. 

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