ASTM-F1753 › Standard Specification for Classification and Marking of Single-Lens Scopes for Use with Archery Bows (Withdrawn 2023)

ASTM-F1753 - 1996 R14 EDITION - CANCELLED
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This specification covers the classification and marking of single-lens scopes used in conjunction with archery bows. The lenses are classified in terms of optical magnification, scope markings, and charts of the empirical relationship of the apparent magnification that the consumer can expect to obtain when a correctly marked lens is used under specific conditions. The visual acuity of the lenses is related to the magnification of the lens in general, and is dependent on other factors such as the specific individual, lens quality, and the size of the rear aperture used with the lens. This specification does not go beyond this definition of acuity.

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Scope

1.1 This specification covers lenses and scopes used in conjunction with archery bows. It establishes a standardized system for the classification of these lenses in terms of their optical magnification, the marking of the scopes in which the lenses are mounted, and charts depicting the empirical relationship of the apparent magnification the consumer can expect to obtain when a correctly marked lens is used under specific conditions.

1.2 Acuity—The visual acuity of these lenses is related to the magnification of the lens in general. For the average subject there can be an improvement in acuity with lenses having apparent magnifications of 2 to 4× and a decrement in acuity with lenses of 6× and greater.

1.2.1 Acuity also is dependent on other factors, such as the specific individual, lens quality, and the size and quality of the rear aperture (peep) used in conjunction with the lens. Beyond this statement, acuity is not the subject of this specification.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

Significance and Use

4.1 This specification is intended to ensure uniform classification of the lenses and the marking of scopes to avoid confusion of the consumer, which results form the use of different classification and identification systems.

4.2 This specification is based on the use of the diopter that is the reciprocal of the focal length of the lens as measured in metres.

Keywords

archery lenses; diopter; focal length; magnifying sights; scopes ;

To find similar documents by ASTM Volume:

15.07 (Sports Equipment and Facilities; Pedestrian/Walkway Safety and Footwear; Amusement Rides and Devices; Snow Skiing)

To find similar documents by classification:

97.220.40 (Outdoor and water sports equipment Including equipment for mountaineering, football, tennis, swimming, diving, etc. Personal flotation devices (life jackets), see 13.340.70 Small craft, see 47.080)

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Document Number

ASTM-F1753-96(2014)

Revision Level

1996 R14 EDITION

Status

Cancelled

Modification Type

Withdrawn

Publication Date

Nov. 15, 2014

Document Type

Specification

Page Count

4 pages

Committee Number

F08.16