NAPM IT2.4 : 0
Current
The latest, up-to-date edition.
PHOTOGRAPHY (SENSITOMETRY) - BLACK-AND-WHITE AERIAL CAMERA FILMS - DETERMINATION OF ISO SPEED AND AVERAGE GRADIENT
Hardcopy
English
SECTION
0 Introduction
1 Scope and Field of Application
2 References
3 Definitions
3.1 Exposure, H
3.2 Speed
3.3 Average Gradient
4 Sampling and Storage
5 Method of Test
5.1 Principle
5.2 Safelights
5.3 Exposure
5.4 Processing
5.5 Densitometry
5.6 Evaluation
6 Product Classification
6.1 ISO Aerial Speed
6.2 ISO Aerial Average Gradient
6.3 Accuracy
7 Product Marking and Labelling
7.1 ISO Aerial Speed
7.2 ISO Aerial Average Gradient
7.3 General
TABLES
1 Relative Spectral Power Distribution of ISO Sensitometric
Aerial Daylight
2 ISO Aerial Speed Scale
3 ISO Aerial Average Gradient Scale
FIGURES
1 Sensitometric Curve
ANNEXES
A Processing with Standard Chemicals
A1 Development
A2 Fixing
A3 Washing
A4 Drying
A5 Classification
B Film-Process Selection
Figure 2 Film-Process Combinations
Bibliography
Defines methods for the determination of ISO serial average gradient and ISO aerial speed of black-and-white negative camera film-process combinations used in aerial photography. Not applicable to infrared aerial films.
| DevelopmentNote |
Reaffirmation and redesignation of ANSI PH2.34-1987.
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
National Association of Photographic Manufacturers, Inc.
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| ISO 7829:1986 | Identical |
| ISO 5-3:2009 | Photography and graphic technology — Density measurements — Part 3: Spectral conditions |
| ISO 554:1976 | Standard atmospheres for conditioning and/or testing — Specifications |
| ISO 5-2:2009 | Photography and graphic technology — Density measurements — Part 2: Geometric conditions for transmittance density |
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