BS ISO 12232:2006
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Photography. Digital still cameras. Determination of exposure index, ISO speed ratings, standard output sensitivity, and recommended exposure index
Hardcopy , PDF
20-02-2019
English
31-05-2006
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Exposure index values
4.1 General
4.2 Focal plane measurement
4.3 Scene luminance measurement
5 Test conditions
5.1 General
5.2 Illumination
5.2.1 Daylight illumination
5.2.2 Tungsten illumination
5.3 Temperature and relative humidity
5.4 White balance
5.5 Infrared (IR) blocking filter
5.6 Photosite integration time
5.7 Compression
5.8 Other DSC user settings
6 Determination of ISO speed
6.1 General
6.2 Saturation-based speed
6.2.1 Focal plane measurement
6.2.2 Scene luminance measurement
6.3 Noise-based speed
6.3.1 Focal plane method
6.3.2 Scene luminance method
6.3.3 Colour cameras
6.3.4 Quantization effects
6.4 Method of reporting
7 Determination of standard output sensitivity (SOS)
7.1 Method for calculating SOS
7.2 Method of reporting
8 Specification of recommended exposure index (REI)
8.1 Method for calculating recommended exposure index
8.2 Method of report
Annex A (informative) Recommended procedure for
determining the noise-based ISO speed
Annex B (informative) Scene luminance and focal
plane exposure
Annex C (informative) Recommended procedure for determining
SOS values
Annex D (normative) Removing low frequency variations
from the image data
Annex E (informative) Calculation of noise-based minimum
illumination level
Bibliography
Describes the method for assigning and reporting ISO speed ratings, ISO speed latitude ratings, standard output sensitivity values, and recommended exposure index values, for digital still cameras.
| Committee |
CPW/42
|
| DevelopmentNote |
Supersedes 97/704317 DC. (05/2005) Supersedes 04/30098104 DC (05/2006) Reviewed and confirmed by BSI, August 2014. (07/2014)
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 12232:2006 | Identical |
| ISO 10157:1991 | Photography — Flash exposure meter — Requirements |
| IEC 61966-2-1:1999 | Multimedia systems and equipment - Colour measurement and management - Part 2-1: Colour management - Default RGB colour space - sRGB |
| ISO 6:1993 | Photography — Black-and-white pictorial still camera negative film/process systems — Determination of ISO speed |
| ISO 7187:1995 | Photography Materials for direct-positive colour-print cameras Determination of ISO speed |
| ISO 2721:2013 | Photography — Film-based cameras — Automatic controls of exposure |
| ISO 5800:1987 | Photography Colour negative films for still photography Determination of ISO speed |
| IEC 61146-1:1994 | Video cameras (PAL/SECAM/NTSC) - Methods of measurement - Part 1:Non-broadcast single-sensor cameras |
| ISO 14524:2009 | Photography Electronic still-picture cameras Methods for measuring opto-electronic conversion functions (OECFs) |
| ISO 2240:2003 | Photography Colour reversal camera films Determination of ISO speed |
| ISO 2720:1974 | Photography General purpose photographic exposure meters (photoelectric type) Guide to product specification |
| ISO 554:1976 | Standard atmospheres for conditioning and/or testing — Specifications |
| ISO 7589:2002 | Photography Illuminants for sensitometry Specifications for daylight, incandescent tungsten and printer |
| ISO 5763:1989 | Photography Electronic flash equipment Automatic control of exposure |
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