ISO 517-1996 标准详情
- 标准号:ISO 517-1996
- 中文标题:摄影.摄影镜头的光圈和相关特性.名称和符号及测量
- 英文标题:photography-apertures and related properties pertaining to pthotographic lenses-designations and measurements
- 标准类别:国际标准化组织标准ISO
- 发布日期:1996-12-15
Pertains to apertures and related properties of photographic lenses affecting the illuminance at the centre of the image. Does apply only to lenses focused on objects at infinity; that is, at least 50 times the focal length of the lens.
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