BS ISO 14490-4 pdf download

BS ISO 14490-4 pdf download Optics and optical instruments — Test methods for telescopic systems — Part 4: Test methods for astronomical telescopes 1Scope This part of lSO 14490 is applicable to amateur astronomical telescopes.For general optical test methods of telescopic systems see lSO 14490-1. 2Normative references The following referenced documents are indispensable for the application of this document.For datedreferences,only...