Optics and photonics - Test methods for telescopic systems - Part 3: Test methods for telescopic sights
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.
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Version 1 - 2026-06-22
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