ISO-10157 › Photography -- Flash exposure meter -- Requirements

ISO-10157 - 1ST EDITION - CURRENT -- See the following: NAPM-IT3.303


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This International Standard applies to photoelectric flash exposure meters which measure the time integral of the luminance or of the illuminance of a photographic object (to be called thereafter “object”) illuminated by a source of light for a brief illumination period 1) and indicate the time integral or a number corresponding to the time integral or the f-number required for the correct exposure of a photographic film with a given speed.

Continuous light, which is available in addition to the light emitted by the flash light source, is also evaluated.

1) Within the range of gate time specified by the manufacturer for the specific meter.

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Document Number

ISO 10157:1991

Revision Level

1ST EDITION

Status

Current

Publication Date

June 15, 1991

Committee Number

ISO TC 42/WG 13