Request InfoApre InstrumentsÄpre Instruments offers the S100 HR laser Fizeau interferometer for optical manufacturing. The system offers the affordability of a continuous zoom interferometer with the performance of a modern imaging system. It is designed for accurate metrology of highly sloped surfaces and fine resolution of midspatial frequencies. The system features diffraction-limited, 4-MP imaging, better than λ/20 accuracy, even at 8 fringes/mm slopes. 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