The sensitivity of a given film to light, indicated by a number such as ISO 200 The higher the number, the more sensitive or faster the film Note: ISO stands for International Standards Organization
A film's sensitivity to light, rated numerically so that it can be matched to the camera's exposure controls Film speed ratings increase as the sensitivity of the film increases The two most commonly used scales, ASA (American Standards Association) and DIN (Deutsche Industrie Norm), are now superseded by the system known as ISO (International Standards Organization) ASA 100 (21° DIN) is expressed as ISO 100/21°or simply lSO 100
A standard indicator of a film’s sensitivity to light; a numerically greater film speed indicates greater sensitivity Standard arithmetic film speeds are in a progression of a factor of two, e g , 32, 64, 125, 250, Actual nominal values progress by exactly a factor of two, with speeds of 32, 64, 128, etc , exact; the values in the sequence above derive from tradition Films often are available in speeds with 1/3-step increments
The measure of a film's sensitivity to light, the film speed is indicated with an ISO number, such as ISO 200 The higher the number, the more sensitive the film
The relative sensitivity to light of photographic film Measured by ISO (or ASA or DIN) rating Faster film (higher number) is more sensitive to light and requires less exposure than slower film See also Speed
The measure of a film's sensitivity to light, film speed is indicated with an ISO number - for example, ISO 400 The higher the number the more sensitive the film
This indicates how sensitive the film is to light and is represented by a number such as ISO 100 or ISO 400 etc Note that the higher the number the more sensitive or faster the film
The relative sensitivity to light of a film There are several rating systems: ASA (the commonest in the United States and similar to a British rating system), °ASA, DIN (common in Europe) and others, Film speed ratings increase as the sensitivity of the film increases
A measurement of film's sensitivity to light, generally in numerical terms of an ISO exposure index - e g ISO 100 More sensitive (faster) films have higher ISO numbers and require less exposure in order to make a properly-exposed picture
a film's sensitivity to light, usually represented in ISO numbers Common numbers include 50,64,100,200,400,800, and 1600 The higher the number, the "faster" the film, and the less light it requires for proper exposure