CRISP prefilter transmission profiles as measured by the manufacturer for the filters installed before the 2018 season. The blue curves correspond to the smaller part number and (for the wavelength bands where we have spares) red curves the larger. The gray lines represent the average disk center atlas spectrum, normalized to the continuum. See also Table 1. (a) 517.2 nm filter profiles. (b) 587.6 nm filter profile. (c) 617.4 nm filter profiles. (d) 630.2 nm filter profiles. (e) 656.3 nm filter profiles. (f) 854.3 nm filter profiles.