GB/T 9917.1-2025 Camera lens—Part 1:Zoom lens

GB/T 9917.1-2002 Camera lens—Part 1:Zoom lens

GB/T 321-1980 Preferred numbers and preferred number series GB/T 321-2005 Preferred numbers—Series of preferred numbers GB/T 13964-2008 Photographic machinery—Vocabulary GB/T 20733-2022 Digital camera—Vocabulary GB/T 29298-2012 Digital still camera general specification JB/T 8247.1-1999 JBT 8247.1-1999 Photographic lens - Ranging scale markings JB/T 8247.2-1995 F-stop mark on a camera lens JB/T 8247.2-1999 Aperture markings of photographic lenses JB/T 8248.1 JB/T 8248.2-1999 The measurement methods for effective aperture and relative aperture of a camera lens JB/T 8248.4-1999 JBT 8248.4-1999 Photographic lenses - Measurement method for scattered light coefficient JB/T 8248.5-1999 The measurement method for focal length of a camera lens JB/T 8251-1999 The color contribution index of a photographic lens JB/T 8252-1999 Fornt lens barrels up to 100mm-Dimensions Important to the connection of auxiliaries JB/T 13702.1-2019 Camera Environmental Testing - Part 1: High and Low Temperature Testing JB/T 13702.2-2019 Camera environmental testing - Part 2: Vibration testing JB/T 13702.3-2019 Camera environmental testing - Part 3: Impact testing JB/T 13702.4-2019 Camera environmental test - Part 4: Impact test JB/T 13702.5-2019 Camera environmental test - Part 5: Free fall test JB/T 14302-2022 Photographic mechanical packaging, transportation, storage conditions and test methods