ObsoleteGo to latest versionJB/T 9426.6-2011

JB/T 9426.12-1999Method for measurement of veiling glare index(VGl) of motion picture lenses (English PDF)

电影摄影物镜杂光系数的测定方法

JB/T 9426.12 | Evolution and historical versions

Std ID	Title	Status
JB/T 9426.6-2011	Lenses for motion picture camera —Part 6: Method for determining various functions of lenses for motion picture camera	Valid
JB/T 9426.12-1999	Method for measurement of veiling glare index(VGl) of motion picture lenses	Obsolete

JB/T 9426.12-1999 is obsolete. It has been replaced by JB/T 9426.6-2011. This page sells the obsolete edition, for projects and contracts that still cite it.

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Issued by

Qinhuangdao Audio-Visual Machinery Research Institute

Level / Type

Industry · Recommended

Issue date

August 6, 1999

Implementation date

January 1, 2000

Scope

JB/T 9426.12-1999 is the English-translated version of 电影摄影物镜杂光系数的测定方法.

JB/T 9426.12-1999 is the Chinese industry standard "Method for measurement of veiling glare index(VGl) of motion picture lenses". It was issued on August 6, 1999 by Qinhuangdao Audio-Visual Machinery Research Institute, and took effect on January 1, 2000. It is obsolete: it has been replaced by JB/T 9426.6-2011.

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Document preview — JB/T 9426.12-1999

National Standard of the People's Republic of China

Issued by: Qinhuangdao Audio-Visual Machinery Research Institute

Document data

1 Document data

Sector: Machinery (industry standard).

Issuing body: Qinhuangdao Audio-Visual Machinery Research Institute.

Date of issue: 1999-08-06.

Date of implementation: 2000-01-01.

Status: obsolete, replaced by JB/T 9426.6-2011.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

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