Optics and optical instruments. Test methods for telescopic systems - Test methods for basic characteristics Ingestion-build-223009 4 Jointing of pipes

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Optics and optical instruments. Test methods for telescopic systems - Test methods for basic characteristics Ingestion-build-223009 4 Jointing of pipes1 Scope This part of ISO 14490 specifies the test methods for the determination of the following basic characteristics of telescopic systems and observational telescopic instruments: angular magnification (see Clause 4); entrance pupil diameter (see Clause 5); exit pupil diameter and eye relief (see Clause 6); angular field of view in the object space (see Clause 7); angular field of view in the image space (see Clause 8); angular field of view in the