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Optical Entrance Input Round Diameter : 0.5 ㎜ NA = 0.22 monted in SMA-coupling Slit Output Linear 50 &13211 - 1000 &13211 standard Optional 10, 25, 100, 200 &13211 Grating Flat-field, 600 Line/㎜ center Blazed at 500 &13210 350 ~ 850 &13210 Optional blazed at 400 &1321025