BS ISO 14490-2:2005

This standard BS ISO 14490-2:2005 Optics and optical instruments. Test methods for telescopic systems is classified in these ICS categories:

• 37.020 Optical equipment

This part of ISO 14490 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.