Traditionally, the color balance of illumination in Degrees Kelvin has been of significant importance due to color sensitivity of film. Today, digital cameras including camera phones have an automatic white balance setting that reduces the importance of illumination color balance over film cameras. However, with the relatively fast pace of change of fluorescent and now light emitting diode (LED) illumination including camera strobes, the quality of light measured by Rendering Index (Ra) may be of more importance than Color Balance (Kelvin). Combining low rendering index values of some artificial light sources with the large color gamuts of inkjet printers versus traditional silver halide printers, increases the effects of color inconsistency and metamerism. While there is no immanent solution, it is important for imaging professionals to be aware this growing concern.
Ron Kubara, "Importance of Illumination Rendering Index in Image Capture and Printing" in Proc. Int'l Symp.on Technologies for Digital Photo Fulfillment, 2013, pp 7 - 13, https://doi.org/10.2352/ISSN.2169-4672.2013.4.1.art00004