90.93 Standard confirmed Oct 20, 2021
ISO/TC 172/SC 4 Telescopic systems
37.020 Optical equipment
ISO 14490-1:2005 specifies the test methods for the determination of the following basic characteristics of telescopic systems and observational telescopic instruments:
angular magnification;entrance pupil diameter;exit pupil diameter and eye relief;angular field of view in the object space;angular field of view in the image space;angular field of view in the object space for spectacle wearers;collimation of the bundle of rays emergent from the eyepiece;image rotation;closest distance of observation.
90.93 Standard confirmed
Oct 20, 2021