Moving Images, Understanding Media

Chapter 4 Storytelling with Light 131

there are many diff erent ways in which light-sensitive products react to

light. Th e sensitivity to light of a particular emulsion or other photographic

surface is expressed by ISO rating and exposure index (EI) values. Film speed

ratings, determined by offi cial standards and referred to by such terms as ISO

(International Standardization Organization) or the older ASA (American

Standards Association) index, are values that measure the sensitivity of a

particular fi lm stock or photographic medium and are used to determine

the appropriate exposure settings (f-stop and shutter speed).

Figure 4-12 Hallway

sequence that captures low

light scene in Side Streets

with cinematography by

Russell Lee Fine. (Photo by

Seth Rubin, Courtesy Market

Road Films)

Figure 4-11 Shot from the

D-Day beach landing scene

of Saving Private Ryan.

(Courtesy Paramount / Photofest)

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