ISO 2721:2013
Photography — Film-based cameras — Automatic controls of exposure
ISO 2721:2013 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.
ISO 2721:2013 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.
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Section sec_1
Section sec_2
Section sec_3
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
Section sec_5
Section sec_5.1
Section sec_5.2
Section sec_5.3
Section sec_5.4
Section sec_6
Section sec_6.1
Section sec_6.2
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 sec_A.1.1.3
Annex sec_A.1.2
Annex sec_A.2
Annex sec_A.2.1
Annex sec_A.2.2
Table tab_c
Figure fig_A.1
Annex sec_B
Table tab_B.1
Annex sec_C
Annex sec_C.1
Annex sec_C.2
Annex sec_C.3
Annex sec_C.4
Annex sec_C.5
Annex sec_C.6
Annex sec_C.7
Annex sec_C.8
Annex sec_C.9
Reference ref_1
Reference ref_2
Reference ref_3
Reference ref_4
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Specific requirements
4.1 Scales
4.2 Out-of-range indication
4.3 The sensors of exposure controls
5 Calibration of the exposure controls
5.1 Method of calibration
5.2 Light source for calibration
5.3 General test conditions
5.4 Exposure in the focal plane
6 Acceptance angles of the photoelectric system
6.1 Specific acceptance angle
6.2 Oblique acceptance angles
Annex A (normative) Measurement of light exposure in the focal plane and calibration of measuring instrument
Annex B (normative) Size of measuring area
Annex C (normative) Performance test
Bibliography
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Section sec_1
Section sec_2
Section sec_3
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
Section sec_5
Section sec_5.1
Section sec_5.2
Section sec_5.3
Section sec_5.4
Section sec_6
Section sec_6.1
Section sec_6.2
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 sec_A.1.1.3
Annex sec_A.1.2
Annex sec_A.2
Annex sec_A.2.1
Annex sec_A.2.2
Table tab_c
Figure fig_A.1
Annex sec_B
Table tab_B.1
Annex sec_C
Annex sec_C.1
Annex sec_C.2
Annex sec_C.3
Annex sec_C.4
Annex sec_C.5
Annex sec_C.6
Annex sec_C.7
Annex sec_C.8
Annex sec_C.9
Reference ref_1
Reference ref_2
Reference ref_3
Reference ref_4
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Specific requirements
4.1 Scales
4.2 Out-of-range indication
4.3 The sensors of exposure controls
5 Calibration of the exposure controls
5.1 Method of calibration
5.2 Light source for calibration
5.3 General test conditions
5.4 Exposure in the focal plane
6 Acceptance angles of the photoelectric system
6.1 Specific acceptance angle
6.2 Oblique acceptance angles
Annex A (normative) Measurement of light exposure in the focal plane and calibration of measuring instrument
Annex B (normative) Size of measuring area
Annex C (normative) Performance test
Bibliography