Definition: see film speed.
Definition: Although the letters actually stand for International Standards Organization, they also indicate a film's sensitivity to light, or as more commonly referred to, its speed. The term pronounced by the individual letters: I--S--O, not as if it were the word "ayso" The early term was ASA, which stood for American Standards Organization" Slow film have an ISO rating of 100 and less, while fast films are 400 and higher.
Definition: International Standards Organization. Used instead of ASA as prefix to film speeds. The scale is identical to the ASA scale.
Definition: Although the letters actually stand for International Standards Organization, they also indicate a film's sensitivity to light, or as more commonly referred to, its speed. The term pronounced by the individual letters: I--S--O, not as if it were the word "ayso" The early term was ASA, which stood for American Standards Organization" Slow film have an ISO rating of 100 and less, while fast films are 400 and higher.
Definition: International Standards Organization. Used instead of ASA as prefix to film speeds. The scale is identical to the ASA scale.
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