
Photography - Apertures and related properties pertaining to photographic lenses - Designations and measurements (ISO 517:2008)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Photography - Apertures and related properties pertaining to photographic lenses - Designations and measurements (ISO 517:2008)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频