• 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

    Available format(s):  Hardcopy

    Language(s):  English

    Published date: 

    Publisher:  National Association of Photographic Manufacturers, Inc.

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    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Development Note Reaffirmation and redesignation of ANSI PH2.34-1987.
    Document Type Standard
    Publisher National Association of Photographic Manufacturers, Inc.
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    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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