ISO/TC 172/SC 4/WG 2 - Telescopic devices

This document specifies the test methods for the determination of the transmittance of telescopic systems and telescopic observational instruments.

This document specifies test equipment and test procedures for determination of the following optical characteristics of telescopic sights: - axial parallax; - parallax; - eye relief range, eye relief, critical eye relief; - reticle tracking; - line of sight shift due to zooming; - line of sight shift due to focusing.

This document applies to telescopic sights used on hand-held firearms and airguns and gives terms and definitions for telescopic sights only. The alphabetical indexes of terms that are common for all published parts of ISO 14132 are published in ISO 14132-1. The definitions can be changed, if required, by introducing derivative attributes into them, revealing the meanings of the terms used, showing the objects covered by the scope of the notion being defined. These changes will not affect the scope and contents of this document.

This document applies to general-purpose telescopic sights, used on hand-held firearms and airguns. It contains a classification to the usage of telescopic sights and specifies interfaces, minimum requirements and tolerances to their performances. High-performance telescopic sights are specified in ISO 14135-2.

This document applies to high-performance telescopic sights, used on hand-held firearms and airguns. It contains a classification of the usage of telescopic sights and specifies interfaces, minimum requirements and tolerances to their performances. General-purpose telescopic sights are specified in ISO 14135-1.

This document specifies the test method for the measurement of the axial colour performance which includes axial chromatic aberration and spherical aberration of telescopic systems and observational telescopic instruments.

This document specifies the test method for the determination of the deviation from a flat image surface, i.e. the sagittal and tangential field curvature of telescopic systems and observational telescopic instruments.

ISO 20711:2017 specifies requirements to be met with regard to resistance of the optical, mechanical, chemical and electrical properties or performance data of instruments to environmental influences and hence determines geographical and technical areas of application. It applies to consumer telescopic systems and accessories, such as hunting and sporting products. Environmental test methods as specified in relevant parts of ISO 9022 are assigned to the various areas of application for the purpose of ascertaining the suitability of the instruments in their respective area of application. ISO 20711:2017 is the basis for the specification of environmental requirements and environmental tests in instrument standards. If necessary, these requirements and tests can be amended in the instrument standards. ISO 20711:2017 does not deal with the requirements to be met by the packaging of the instrument during transport from the manufacturer to the user. NOTE Nominal values of properties and performance characteristics as understood by this document are predetermined by specifications provided by the manufacturer, technical terms of delivery and instrument standards.

ISO 14490-7:2016 specifies the test methods for the determination of the limit of resolution of telescopic systems and observational telescopic instruments.

ISO 14135-1:2017 applies to general-purpose telescopic sights, used on hand-held firearms and airguns. It contains a classification to the usage of telescopic sights and specifies interfaces, minimum requirements and tolerances to their performances. High-performance telescopic sights are specified in ISO 14135-2.

ISO 14135-2:2017 applies to high-performance telescopic sights, used on hand-held firearms and airguns. It contains a classification of the usage of telescopic sights and specifies interfaces, minimum requirements and tolerances to their performances. General-purpose telescopic sights are specified in ISO 14135-1.

ISO 14490-5:2017 specifies the test methods for the determination of the transmittance of telescopic systems and observational telescopic instruments.