BS ISO 2721:2013

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Photography. Film-based cameras. Automatic controls of exposure

Published By	Publication Date	Number of Pages
BSI	2013	22

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Categories: 37.040.10 - Photographic equipment. Projectors, BSI

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Description

This International Standard specifies the exposure at the focal plane of film-based cameras for values of two exposure parameters, i.e. field luminance and film speed, and also describes methods of evaluating other photometric characteristics, such as the acceptance angles of the photoelectric system.

This International Standard applies to automatic exposure control systems which are built into film-based cameras or coupled with them to regulate the exposure in the focal plane as a function of the several exposure parameters. The mechanism can control either the focal-plane illuminance or the exposure-time interval or both. Pointer (or needle) matching systems are included in this International Standard even though they are not fully automatic. This standard is not applicable to digital cameras.

PDF Catalog

PDF Pages	PDF Title
6	Foreword
7	Introduction
9	Section sec_1 Section sec_2 Section sec_3 1 Scope 2 Normative references 3 Terms and definitions
10	Section sec_4 Section sec_4.1 Section sec_4.2 Section sec_4.3 Section sec_4.3.1 Section sec_4.3.2 4 Specific requirements 4.1 Scales 4.2 Out-of-range indication 4.3 The sensors of exposure controls
11	Section sec_5 Section sec_5.1 Section sec_5.2 Section sec_5.3 5 Calibration of the exposure controls 5.1 Method of calibration 5.2 Light source for calibration 5.3 General test conditions
12	Section sec_5.4 Section sec_6 Section sec_6.1 Section sec_6.2 5.4 Exposure in the focal plane 6 Acceptance angles of the photoelectric system 6.1 Specific acceptance angle 6.2 Oblique acceptance angles
13	Annex sec_A Annex sec_A.1 Annex sec_A.1.1 Annex sec_A.1.1.1 Annex sec_A.1.1.2 Annex A (normative) Measurement of light exposure in the focal plane and calibration of measuring instrument
14	Annex sec_A.1.1.3 Annex sec_A.1.2 Annex sec_A.2 Annex sec_A.2.1
15	Annex sec_A.2.2 Table tab_c Figure fig_A.1
16	Annex sec_B Table tab_B.1 Annex B (normative) Size of measuring area
17	Annex sec_C Annex sec_C.1 Annex sec_C.2 Annex sec_C.3 Annex sec_C.4 Annex sec_C.5 Annex C (normative) Performance test
18	Annex sec_C.6 Annex sec_C.7 Annex sec_C.8 Annex sec_C.9
19	Reference ref_1 Reference ref_2 Reference ref_3 Reference ref_4 Bibliography

Additional information

Status	Confirmed
Pages	22
Publication Date	2013-03-31
ISBN	978 0 580 80718 3
Standard Number	BS ISO 2721:2013
Title	Photography. Film-based cameras. Automatic controls of exposure
Identical National Standard Of	ISO 2721:2013
Descriptors	Photographic film, Photography, Testing conditions, Monochrome photography, Monochrome photographic film, Sensitometry, Specimen preparation, Still photographic film, Test equipment, Classification systems, Marking, Photographic materials, Accuracy
Publisher	BSI
Committee	CPW/42
ICS Codes	37.040.10 - Photographic equipment. Projectors

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BS ISO 2721:2013

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