ISO 18383:2015
(Main)Photography — Digital cameras — Specification guideline
Photography — Digital cameras — Specification guideline
ISO 18383:2015 identifies a set of features that describes digital still cameras (DSCs), and it specifies their definitions, measurement methods, and presentation methods. This International Standard applies to DSCs designed and produced for and promoted to general consumers and need not be applied to those DSCs designed and produced to meet individual and special specifications agreed upon by particular business or industrial users and the manufacturer. The presentation methods specified in it are intended for use as notations on camera bodies, on product packaging, on promotional materials for advertising and at the point of purchase, in electronic or printed catalogues and other materials, and in the relevant software.
Photographie — Caméras numériques — Ligne directrice de spécification
General Information
Relations
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 18383
First edition
2015-09-01
Photography — Digital cameras —
Specification guideline
Photographie — Caméras numériques — Ligne directrice de
spécification
Reference number
©
ISO 2015
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Definition set of the product specifications of DSCs . 2
4.1 Basic requirements . 2
4.2 Definitions of specifications . 3
4.2.1 General. 3
4.2.2 Optical system . 4
4.2.3 Camera control system . 8
4.2.4 Key components .14
4.2.5 Recording system .21
4.2.6 Image quality .23
4.2.7 Response time .30
4.2.8 Miscellaneous features .33
Annex A (normative) Measurement methods of features not related to image quality .39
Annex B (normative) Related standards .46
Annex C (informative) Commentary .58
Bibliography .61
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 42, Photography.
iv © ISO 2015 – All rights reserved
Introduction
The digital still camera (DSC) marketplace continuously produces and promotes new and competitive
cameras. Requiring that manufacturers produce DSCs with standard numerical specifications impedes
the technical progress, interferes with fair market competition, hinders the sound development of the
industry, reduces camera innovation, and limits the customer’s choice. On the other hand, standardized
definitions of a fundamental set of camera specifications can help consumers to choose, purchase, and use
these cameras because they provide the information needed to understand and compare the numerical
specifications offered by the manufacturers and, thus, contribute to the fair competition in the market.
The various fundamental features of DSCs have close relationships with other features, such as camera
size or cost. Nonetheless, these features, their relationships, and their numerical values vary with time
and technological evolution. Manufacturers design and build their cameras to numerical specifications
that balance performance with their estimation of the competitiveness of the product in and the
feedback from the marketplace.
This International Standard identifies a set of fundamental features that describe DSCs, along with
their accepted definitions, measurements, and presentation methods, but it does not define nor specify
numerical values for the features, functions for calculating these values, nor limiting values required
for these features.
This International Standard is based on Reference [1] prepared by Camera and Imaging Products
Association (CIPA).
INTERNATIONAL STANDARD ISO 18383:2015(E)
Photography — Digital cameras — Specification guideline
1 Scope
This International Standard identifies a set of features that describes digital still cameras (DSCs), and
it specifies their definitions, measurement methods, and presentation methods. This International
Standard applies to DSCs designed and produced for and promoted to general consumers and need not
be applied to those DSCs designed and produced to meet individual and special specifications agreed
upon by particular business or industrial users and the manufacturer.
The presentation methods specified in this International Standard are intended for use as notations
on camera bodies, on product packaging, on promotional materials for advertising and at the point of
purchase, in electronic or printed catalogues and other materials, and in the relevant software.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 516, Photography — Camera shutters — Timing
ISO 517, Photography — Apertures and related properties pertaining to photographic lenses — Designations
and measurements
ISO 2720, Photography — General purpose photographic exposure meters (photoelectric type) — Guide to
product specification
ISO 12232, Photography — Digital still cameras — Determination of exposure index, ISO speed ratings,
standard output sensitivity, and recommended exposure index
ISO 12233, Photography — Electronic still picture imaging — Resolution and spatial frequency responses
ISO 14524, Photography — Electronic still-picture cameras — Methods for measuring opto-electronic
conversion functions (OECFs)
ISO 15739, Photography — Electronic still-picture imaging — Noise measurements
ISO 15781, Photography — Digital still cameras — Measuring shooting time lag, shutter release time lag,
shooting rate, and start-up time
ISO 17850, Photography — Digital cameras — Geometric distortion (GD) measurements
ISO 17957, Photography — Digital cameras — Shading measurements
1)
Photography — Digital cameras — Chromatic displacement measurements
ISO 19084,
IEC 61747-6:2003, Liquid crystal and solid-state display devices — Part 6: Measuring methods for liquid
crystal modules — Transmissive type
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
1) To be published.
3.1
factory shipping conditions
factory shipping settings
factory shipping values
factory shipping mode
camera settings and parameters as configured by the manufacturer for shipping from the factory
3.2
image area
region of an image sensor in the focal plane that captures the part of the incident image and that
corresponds to the output image data
3.3
output image
image created by a DSC through capture of an optical image by an image sensor followed by processing
and then output through any communication means
3.4
primary notation
notation which describes feature name and value presented solely or most noticeably
3.5
ring pixel
light-sensitive pixels in the image sensor of a DSC, that are outside the image area and are used in the
image processing
Note 1 to entry: Examples of image processing are demosaicing, noise reduction, and spatial filtering.
4 Definition set of the product specifications of DSCs
4.1 Basic requirements
This International Standard does not mandate the inclusion and reporting of any features but provides
a reference on what presentation methods and written expressions should be used for particular
features. The requirements for the definition, measurement, and presentation of the set of DSC features
established in this International Standard are described below. Note well that the requirements do not
specify numerical values for any features that DSCs shall achieve. There are features included in this
International Standard with the paradoxical statement, “This International Standard does not cover
this feature.” These features are commonly found on many cameras. They are included for completeness
and to explicitly recognize that these features are only specified at the discretion of the manufacturer.
a) When a feature is described on the product, in catalogues, or in other documents, the presentation
method of the feature and its measured values shall comply with the following requirements:
1) Features and their values with factory shipping settings or modes shall be presented as the
primary notation of those features. The primary notation need not include the description of
the setting and measurement conditions. When additional values with different settings are
described, they shall include the details of the settings and measurement conditions.
2) The descriptions of features and their values that are not available through factory shipping
settings shall include the settings or modes that make these features available. Features
available in multiple settings or modes shall be made available with the setting or mode that is
assumed to be the most likely used and shall be presented if they affect the functionality.
3) Features with no default parameters or modes in the factory shipping setting shall be assigned
parameters or modes that are assumed to be the most likely used. They shall be presented if
they affect the functionality.
2 © ISO 2015 – All rights reserved
4) Exceptions to the priority on the factory shipping setting may be given to certain features
defined in 4.2. They may be given when the above requirements are redundant or when the
descriptions with the other settings, parameters, or modes give the users more accurate and
definitive information.
b) For cameras with interchangeable lenses, the presentation of any features affected by the choice
of lens shall include information that identifies th
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.