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BS ISO 516:2019

BS ISO 516:2019

$142.49

Camera shutters. Timing. General definition and mechanical shutter measurements

Published By Publication Date Number of Pages
BSI 2019 32
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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.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
12 4 Symbols
13 5 Required characteristics and their tolerances
5.1 Exposure time
14 5.1.1 Exposure time marking
5.1.2 Tolerances
5.2 Delay time
5.2.1 Front shutters
16 5.2.2 Focal-plane shutters
17 6 Test methods
6.1 General
6.2 Apparatus
6.2.1 Apparatus
6.2.2 Detector
18 6.2.3 Time-interval meter
6.3 Front-shutter test
6.3.1 Test assembly
6.3.2 Procedure
19 6.4 Focal-plane-shutter test
6.4.1 Test assembly
20 6.4.2 Procedure
21 7 Explanatory notes
7.1 Tolerance
22 7.2 Test method
23 Annex A (normative) Graphic test methods
30 Bibliography

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BS ISO 516:2019
$142.49