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Simple and compact lens spectrographs with astigmatism correction for operation in UV, VIS and near-IR regions. In SL100M spectrographs a micrometer screw is used to provide wavelength scanning. More
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A unique spectrograph model NP250-2 with astigmatism correction has two independent channels featuring a possibility of grating change and automated wavelength tuning. More
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Two-channel spectrograph with astigmatism correction is manually controlled and optimized for operation with CCDs. More
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