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470-250-040

Spectrum Scientific has introduced its newest aberration-corrected blazed holographic concave grating. SSI’s new 470-250-040 grating has a very high efficiency of 85 per cent at the 250nm blaze wavelength. It has a wavelength range from 190-800nm. With a focal ratio of F/2 it offers one of the highest numerical apertures available today with the lowest stray light.

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