Historical
ISO 14135-2:2014
Optics and photonics - Specifications for telescopic sights - Part 2: High-performance instruments
ISO 14135-2:2014 applies to high-performance telescopic sights, used on hand-held firearms and airguns. It contains a classification of the usage of telescopic sights and specifies interfaces, minimum requirements, and tolerances to their performances.
General-purpose telescopic sights are specified in ISO 14135‑1.
International Organization for Standardization [iso]