Request InfoGraticules Optics Ltd.The R74, with improved dual material construction, provides a clear optical path USAF resolution pattern from group −2/1 to 4/6. Suitable for resolution testing of thermal, far-IR, UV, and x-ray systems. The front blackened 100-mm-sq copper card supports a finely patterned nickel central foil. Open apertures provide a clear air-path pattern to eliminate chromatic and absorption issues.See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra March 2024 IssueSpatial Light ModulatorThe PLUTO-2.1 from HOLOEYE Photonics is a phase-only spatial light modulator that consists of a driver unit with standard digital video interface and a phase only liquid crystal on silicon (LCOS)...Promoted Content February 2024 IssueOEM Microscopy ComponentsOlympus Scientific Solutions is now Evident, but our commitment to manufacturing high-quality microscopy components and optics is unchanged. 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