标准编号：ISO 516:2019
中文名称：照相机快门 定时 一般定义和机械快门测量
英文名称：Camera shutters — Timing — General definition and mechanical shutter measurements
发布日期：2019-04
标准范围
This document provides a uniform basis for determining the exposure times for all types of shutters
used in still cameras and contains suitable definitions of the terms used.
It specifies the exposure-time markings for all types of shutters and their tolerances.
The characteristics of all types of mechanical shutters, which are mounted in still cameras and affect
the control of exposure, motion-stopping ability and synchronization with a photoflash light source are
also defined.
The tolerances specified are the target values for the shutter performance that can be expected to
give good results. They are not intended for application as a general inspection standard in controlling
the performance of mechanical shutters, since tolerances may vary with the feature and price class of
camera tested.
Test methods are described for routine manufacturing testing and quality control. These test methods
require access to the focal plane of the camera and can therefore not be applied to assembled digital
still cameras.
立即下载标准文件