The brochure titled “The DeltaNu DNS Series of Monochromators/Spectrographs” from Intevac Inc. details the compact, short-focal-length DNS-150 model with 0.4-nm resolution, for applications that generally do not need high spectral resolution. Available in print or in pdf, the five-page document describes the DNS-300, which offers a precision direct drive and triple grating turret for high repeatability and reproducibility in spectral position, and the DNS-500, for more demanding applications, in a 500-mm focal length package and with a high-speed f/6.5 aperture. The DNS-750 for critical measurements in atomic emission, photoluminescence and laser fluorescence applications also is described. Charts and diagrams are included.