Reversal film  From Wikipedia, the free encyclopedia Jump to:
navigation, search A single slide, showing a color transparency
in a plastic frame A slide projector, showing the lens and a
typical double slide carrier.  In photography, a reversal film
is a type of photographic film that produces a positive image on
a transparent base. The film is processed to produce
transparencies or diapositives (abbreviated as diafilm in many
countries) instead of negatives and prints. Reversal film is
produced in various sizes, from 35 mm roll film to 8×10 inch
sheet film.  A slide is a specially mounted individual
transparency intended for projection onto a screen using a slide
projector. This allows the photograph to be viewed by a large
audience at once. The most common form is the 35 mm slide, with
the image framed in a 2×2 inch cardboard or plastic mount. Some
specialized labs produce photographic slides from digital camera
images in formats such as JPEG, from computer-generated
presentation graphics, and from a wide v