KS B 5425-1998
Photographic lenses-F-number marking

Standard No.

KS B 5425-1998

Release Date

1998

Published By

Korean Agency for Technology and Standards (KATS)

Status

Be replaced 2013-12

Replace By

KS B 5425-2013

Latest

KS B 5425-2023

Replace

KS B 5425-1988

Scope

This standard specifies the aperture scale and its tolerances displayed on photographic lenses.

KS B 5425-1998 history

• 2023 KS B 5425-2023 F-number marking of photographic lenses
• 0000 KS B 5425-2013(2018)
• 2013 KS B 5425-2013 Photographic lenses ? F-number marking
• 1998 KS B 5425-1998 Photographic lenses-F-number marking
• 0000 KS B 5425-1988