American Standards Association. Superseded by the American National Standards Institute. See ANSI.
An old film sensitivity rating, replaced by ISO.
a. American Standards Association. b. the sensitivity (speed with which it reacts to light) of a film. Film Speed
American Standards Association. System used to rate film speed.
American Society of Anesthesiologists.
American Speed Association
Australian Society of Archivists
Ambulance Service Association
See Associate of the Society of Actuaries.
n. American Standards Association. An arithmetic series of numbers that denotes the sensitivity of a film. ASA has been supplanted by ISO and is no longer used, although the ASA number sequence is part of the ISO designation for film and digital sensor speed. See ISO for more information. _______________________________________________________
merican tandards ssociation - See ISO - committee that sets standards on sensitivity of imaging surfaces.
American Standard AssociationÃÀ¹ú±ê×1/4
American Society on Aging A national professional organization.
American Staffing Association
Antarctic Support Associates
Astronomical Society of Australia span
Autism Society of America
Automotive Service Association
(or ISO) is a system for rating the sensitivity to light of film or the photocells in a digital camera. Most digital cameras today use the ISO rating designation, which is identical. An ISO (or ASA) rating of 100 means the film or camera's sensitivity is lower than one set at an ASA/ISO of 800. But a low ASA/ISO usually results in a smoother appearance with less "grain." See also ISO.
American Sociological Association
Abbreviation for American Standards Association (Now ANSI). In photography, Used in conjunction with a number, e.g., ASA 400, refers to film or sensor "speed" or sensitivity to light. The higher the number, the more sensitive the film/sensor, allowing for faster shutter speeds and/or smaller f/stops. The ASA scale has been replaced by the one from ISO (International Organization for Standardization), the scale numbers remain the same; e.g. ASA 100 = ISO 100 (See ISO for further explanation)
Senior Member, American Society of Appraisers. A professional designation awarded to individuals involved in the appraisal of both real and personal property.
American Standards Association. Film speed rating, expressed as a number. The higher the number, the faster or more sensitive the film to light. More recently known as ISO.
American Soybean Association
This is the old system of film speed rating. It stands for the American Standards Association. This system has been replaced by the ISO system. A film will show its speed as 100 ISO or 800 ISO, etc.
original system of rating photographic materials, which was devised by the American standards Association. The ISO rating system is now used in place of the ASA.
Abbreviation for American Standards Association. Former name of ANSI.
ASA stands for American Standards Association. Film speed is measured by its ASA Rating. Generally speaking, the higher a film's ASA number, the faster the film is. (The speed at which the film captures light) For example a film with an ASA rating of 100 is twice as sensitive to light as a similar film which has an ASA rating of 50. ASA has now been replaced by the international standard ISO (see below) but many photographers still refer to ASA (Including myself) ASA rating only applies to exposures between approximately 1/1000 and 10 seconds. Anything after that and the rating becomes relatively meaningless. Most films behave as their reported ASA rating when used in normal, daylight photography, with exposures of up to a few seconds.
American Standards Association. No longer used, but will be found on older equipment. See: ISO and DIN.
Abbreviation for Australian Shareholders Association Limited.
(American Standards Association) An old film speed rating system. Now superseded by ISO. (see ISO)
Associate of the Society of Actuaries. An association of actuaries organized in 1948 as the successor to the Actuarial Society of America and the American Institute of Actuaries. It grants the designation Associate of the Society of Actuaries upon completion of five examinations and Fellow of the Society of Actuaries upon the completion of five additional examinations. (LI)
American Standards Association. Older model of rating film speed.
Film ratings, expressed as a number indicating a film's sensitivity to light. The larger the number, the more sensitive and faster the film is. While traditional cameras don't have a specific ISO rating, digital cameras do as a way to express their sensitivity to light.
Australian Shipowners Association
American Subcontractors Association
Associate of the Society of Actuaries. See Society of Actuaries.
A number set by the American Standards Assoc., which is placed on film stock to allow calculation of the length and "F" number of an exposure. Reference, "F" numbers.
The now defunct film speed rating system of the USA Standards Institute, which was formerly called the American Standards Association - hence the acronym "ASA". The ASA system has been replaced by the more universal ISO system.
Exposure Index or speed rating that denotes the film sensitivity, defined by the American National Standards Institution. Actually defined only for black-and-white films, but also used in the trade for color films.
American Standards, Association, U.S.A. (USASI)
American Statistical Association
Archery Shooters Association
American Standards Association, an old name for ANSI; read ANSI's historical overview.
American Society of Agronomy
The speed of the film or rating of the films sensitivity to light. Also measured in ISO and DIN.
American Standards Association. Film ratings, expressed as a number indicating a film's sensitivity to light. ASA is equivalent to ISO.
see American Society of Appraisers.