lens focus

lens focus, Total:8 items.

The international standard classification for "lens focus" includes: Photographic equipment. Projectors .

The Chinese standard classification for "lens focus" includes: Lens .

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Professional Standard - Machinery

• JB/T 8248.5-1999 Method for measuring the focal length of camera lenses

Taiwan Provincial Standard of the People's Republic of China

• CNS 5639-1980 Focal Length Markings of Lenses

Gosstandart of Russia

• GOST 13095-1982 Objective lenses. Method of measuring the focal length
• GOST 19322-1981 Lenses for still picture cameras. Ranges of focus distances

Japanese Industrial Standards Committee (JISC)

• JIS B 7094:1997 Photographic lenses -- Measurement of the focal length

Korean Agency for Technology and Standards (KATS)

• KS B 5408-1982 Photographic lenses — Measurement for focal length
• KS B 5408-2023 Measurement for focal length of photographic lenses
• KS B 5408-2013(2018) Photographic lenses — Measurement for focal length

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