ISO 14490-3:2021

Optics and photonics — Test methods for telescopic systems — Part 3: Test methods for telescopic sights

Publication date: Mar 23, 2021

General information

Current stage: 90.20 Effective date: Jan 15, 2026

Originator: ISO

Owner: ISO/TC 172/SC 4

Type: International Standard

ICS: 37.020

Languages: English

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Status: Published

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Scope

This document specifies test equipment and test procedures for determination of the following optical characteristics of telescopic sights:
— axial parallax;
— parallax;
— eye relief range, eye relief, critical eye relief;
— reticle tracking;
— line of sight shift due to zooming;
— line of sight shift due to focusing.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 14490-3:2016

NOW

PUBLISHED
ISO 14490-3:2021
90.20 Standard under periodical review
Jan 15, 2026

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