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ISO 14490-9:2019
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ISO 14490-9:2019 Optics and photonics - Test methods for telescopic systems - Part 9: Test methods for field curvature
standard by International Organization for Standardization, 10/01/2019
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ISO 14490-9:2019 specifies the test method for the determination of the deviation from a flat image surface, i.e. the sagittal and tangential field curvature of telescopic systems and observational telescopic instruments.