Published
Specifies a standard series of diameter sizes for the front part of a lens barrel and a standard series of thread sizes for the same front barrel. The data are applicable to lenses of cameras, enlargers and similar equipment. They are meant to simplify the production and storage of such auxiliaries as screw-in filters.
WITHDRAWN
ISO 1948:1973
PUBLISHED
ISO 1948:1987
90.93
Standard confirmed
Dec 20, 2023