JB/T 8247.2-1999 Active Industry standards-Mechanical

JB/T 8247.2-1999 Aperture markings of photographic lenses

Publish Date: 1999-08-06 Implement Date: 2000-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: JB/T 8247.2-1999

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: \nLens

ICS Name: Photographic equipment, projectors

Publish Date: 1999-08-06

Implement Date: 2000-01-01

Pages: 3 pages

Development Information

Pages: 3 pages

Same series standard

JB/T 8247.1-1999 JBT 8247.1-1999 Photographic lens - Ranging scale markings

Replace the following standards

JB/T 8247-1995

Adopt standards

ISO 517-1973

Related Standards

GB/T 7242-1987 Replaced

GB/T 7242-1987 Centering errors of lenses

Publish Date: 1987-02-06

GB/T 9048-1988 Abolished

GB/T 9048-1988 Image area produced by 65mm and 70mm motion-picture camera aperture and maximum projectable image area on 70mm motion-picture prints—Positions and dimensions

Publish Date: 1988-04-12

GB/T 13157-1991 Active

GB/T 13157-1991 Overall electro-acoustic frequency response for reproduction of 35mm optical sound track—Reproduction characteristics

Publish Date: 1991-09-16

GB/T 13964-1992 Replaced

GB/T 13964-1992 Photographic machinery—Vocabulary

Publish Date: 1992-12-17

GB/T 13985-1992 Replaced

GB/T 13985-1992 Operating force and strength of camera

Publish Date: 1992-12-19

GB/T 13986-1992 Abolished

GB/T 13986-1992 Photoelectric method for measuring exposure in focal planes of camera

Publish Date: 1992-12-19