Product Description : Spectrally neutral - reflects all colors through the spectrum equally The G7 Reference Card has both a and b Lab channel values of less than 1 at D50 and are spectrally flat Its specd at less than - 05 Maintains its spectral neutrality under all reasonable temperature and environmental conditions Rugged - waterproof and scratchproof color goes all the way through not just a coating on top Does not respond to UV light any differently than the visible spectrum Each card is individually measured with a precision spectrophotometer to certify that it meets or exceeds stringent specifications
