Slide

In photography, a slide is a thin translucent photograph bound in paper, plastic or similar frame and often used for projection with use of a slide projector for a slideshow. The terms reversal film and transparency are also used.

One can distinguish it from negative and print.

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  A single slide, showing a color transparency in a plastic frame
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  Italian reversal film from the 1950s: Ferraniacolor
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  Slide frames, 1940 (metal) to 1985 (plastic)
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  Slide viewer
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  Slide frame 6x6 cm