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BS ISO 14490-2:2005
Optics and optical instruments. Test methods for telescopic systems. Test methods for binocular systems (British Standard)
ISO 14490-2:2005 is applicable to binocular telescopic systems and specifies the test methods for determination of the following characteristics:
- non-parallelism of the axes of bundles of rays emergent from the eyepieces;
- interpupillary distance;
- relative difference in magnification;
- focusing difference between telescopes of binocular systems.
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British Standards Institution [bsi]
British Standards Institution [bsi]