JB/T 8248.2-1999 照相镜头 有效孔径和相对孔径的测量方法
本标准规定了照相镜头有效孔径和相对孔径的测量方法。 本标准适用于照相镜头有效孔径和相对孔径的测量
Method for measurement for effective aperture and relative aperture of camera lenses
KS B 5409-2013(2018 照相镜头 有效孔径、F数和相对孔径的测量方法
Photographic lenses?Methods for the measurement of the effective aperture, F-number and relative aperture
KS B 5409-2013 照相机镜头.有效孔径、F值和孔径比测定方法
이 표준은 사진 렌즈의 유효 구경, F넘버, 구경비의 측정 방법에 대하여 규정한다
Photographic lenses ? Methods for the measurement of the effective aperture, F-number and relative aperture
KS B 5409-1998 照相机镜头.有效孔径、F值和孔径比测定方法
? ??? ?? ??? ?? ??, F
Photographic lenses-Methods for the measurement of the effective aperture, F-number and relative aperture
KS B 5409-1982 照相机镜头.有效孔径、F值和孔径比测定方法
Photographic lenses ? Methods for the measurement of the effective aperture, F-number and relative aperture
KS B 5409-2023 摄影镜头有效孔径、F值和相对孔径的测量方法
Methods for the measurement of the effective aperture, F-number and relative aperture of photographic lenses
JIS B 7095:1997 摄影镜头.有效孔径、光圈数和相对孔径的测量方法
この規格は，写真レンズの有効口径，Fナンバ及び口径比の測定方法について規定する
Photographic lenses -- Methods for the measurement of the effective aperture, F-number and relative aperture
PN N84507-1991 静止照相机．镜头孔径标记
Niniejsza norma okre?la sposób oznaczania otworów obiektywów wszystkich typów u?ywanych w aparatach fotograficznych
Still cameras. Lens aperture markings
IS 9915-1981 镜头孔径标记规范 静态相机
Specifies lens aperture markings for all types of lenses used in still cameras
CNS 7475-1981 摄影镜头之有效孔径，Ｆ数，孔径比及Ｔ数等测定方法
本标准规定 CNS 6293 摄影镜头之焦距测定通则所符合之摄影镜头（以下简称镜头）有效孔径，F 数，孔径比及 T 数等测定方法
Methods of Measurement for Effective Aperture, F - number, Aperture Ratio and T-number of Photographlc Lenses
GOST 17175-1982 摄影、电影、电视镜头 一系列相对孔径的数值
Lenses for photography, motion picture, television. Series of numerical values of relative apertures
PN N84503-1989 照相机镜头的安装直径
Przedmiotem normy s? wymiary cz??ci czo?owej obiektywów stanowi?cej element do mocowania wyposa?enia (filtrów, soczewek, os?on przeciws?onecznych
The photographic cameras Mounting diameters in lenses
KS B ISO 517-2017(2022 摄影－摄影镜头的孔径和相关特性－命名和测量
Photography－Apertures and related properties pertaining to photographic lenses－Designation and measurements
JJF(机械) 027-2008 相对孔径测试仪校准规范
Calibration Specifications for Relative Aperture Testers
JIS B 7128:1974 8mm胶片的照相机孔径成像的定位和区域
Location and area of the image formed by the camera aperture for 8 mm motion-picture film
JB/T 8248.2-1999 照相镜头 有效孔径和相对孔径的测量方法
本标准规定了照相镜头有效孔径和相对孔径的测量方法。 本标准适用于照相镜头有效孔径和相对孔径的测量
Method for measurement for effective aperture and relative aperture of camera lenses
KS B 5409-2013(2018 照相镜头 有效孔径、F数和相对孔径的测量方法
Photographic lenses?Methods for the measurement of the effective aperture, F-number and relative aperture
KS B 5409-2013 照相机镜头.有效孔径、F值和孔径比测定方法
이 표준은 사진 렌즈의 유효 구경, F넘버, 구경비의 측정 방법에 대하여 규정한다
Photographic lenses ? Methods for the measurement of the effective aperture, F-number and relative aperture
KS B 5409-1998 照相机镜头.有效孔径、F值和孔径比测定方法
? ??? ?? ??? ?? ??, F
Photographic lenses-Methods for the measurement of the effective aperture, F-number and relative aperture
KS B 5409-1982 照相机镜头.有效孔径、F值和孔径比测定方法
Photographic lenses ? Methods for the measurement of the effective aperture, F-number and relative aperture
KS B 5409-2023 摄影镜头有效孔径、F值和相对孔径的测量方法
Methods for the measurement of the effective aperture, F-number and relative aperture of photographic lenses
JIS B 7095:1997 摄影镜头.有效孔径、光圈数和相对孔径的测量方法
この規格は，写真レンズの有効口径，Fナンバ及び口径比の測定方法について規定する
Photographic lenses -- Methods for the measurement of the effective aperture, F-number and relative aperture
PN N84507-1991 静止照相机．镜头孔径标记
Niniejsza norma okre?la sposób oznaczania otworów obiektywów wszystkich typów u?ywanych w aparatach fotograficznych
Still cameras. Lens aperture markings
IS 9915-1981 镜头孔径标记规范 静态相机
Specifies lens aperture markings for all types of lenses used in still cameras
CNS 7475-1981 摄影镜头之有效孔径，Ｆ数，孔径比及Ｔ数等测定方法
本标准规定 CNS 6293 摄影镜头之焦距测定通则所符合之摄影镜头（以下简称镜头）有效孔径，F 数，孔径比及 T 数等测定方法
Methods of Measurement for Effective Aperture, F - number, Aperture Ratio and T-number of Photographlc Lenses
GOST 17175-1982 摄影、电影、电视镜头 一系列相对孔径的数值
Lenses for photography, motion picture, television. Series of numerical values of relative apertures
PN N84503-1989 照相机镜头的安装直径
Przedmiotem normy s? wymiary cz??ci czo?owej obiektywów stanowi?cej element do mocowania wyposa?enia (filtrów, soczewek, os?on przeciws?onecznych
The photographic cameras Mounting diameters in lenses
KS B ISO 517-2017(2022 摄影－摄影镜头的孔径和相关特性－命名和测量
Photography－Apertures and related properties pertaining to photographic lenses－Designation and measurements
JJF(机械) 027-2008 相对孔径测试仪校准规范
Calibration Specifications for Relative Aperture Testers
JIS B 7128:1974 8mm胶片的照相机孔径成像的定位和区域
Location and area of the image formed by the camera aperture for 8 mm motion-picture film
编辑：北检院编辑部
