film. When a high degree of magnification is required,
negative film has much better exposure latitude and is
more versatile than color reversal film.
Black-and-white printing paper, designed to be
provide excellent results, and color slides may be made
easily by copying color prints.
Ektachrome films. This type of film comes in a number
of ISO speeds and is excellent for making aerial slides.
photography in the late afternoon or at dusk when the
light level is low.
somewhat by having internegatives made from color
slides. Color prints can also be made directly from color
through conventional photography. Ordinary color
film has three emulsion layers that are sensitive to blue,
green, and red light; IR color film is sensitive to blue,
green, red, and infrared radiation. The result is
transparencies that reproduce original scene colors
differently for most natural features. IR radiation
Advanced Photography Course