ISO 14490-1:2005Published

Optics and optical instruments — Test methods for telescopic systems — Part 1: Test methods for basic characteristics

Optique et instruments d'optique — Méthodes d'essai pour systèmes télescopiques — Partie 1: Méthodes d'essai des caractéristiques fondamentales

Abstract / scope

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.