Abstract Preview

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.


General information

  • Status :  Published
    Publication date : 2005-10
  • Edition : 1
    Number of pages : 14
  • :
    ISO/TC 172/SC 4
    Telescopic systems
  • 37.020
    Optical equipment

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