Illustration of extinction-dependent reduced K corrections as a function of redshift for a 10 d Cepheid listed in Table 1 and stars near the TRGB listed in Table 3. The results shown assume host reddening of 0.20 mag and 0.00 mag for Cepheids and TRGB stars, respectively. For Cepheids, includes a correction for extinction based on apparent color excess. The NIR Wesenheit function and K_s band exhibit the weakest z dependence for Cepheids and remain generally very close to 0. For Cepheids, the run of is difficult to discern due to overlapping lines for filters with wavelengths between F814W and F160W. TRGB K corrections overlap for filters F150W and F160W (green and light pink), as well as for the F115W and 2MASS J band (brown and red). The top x axis shows luminosity distance, D_L (outer tick marks), in addition to redshift (inner ticks). The dotted black line shows the combination of and RLB (Eq. (17)) for the Wesenheit function, where and RLB add with the same positive sign. The K^ext(W_H, VI) for TRGB stars and Cepheids have opposite signs due to the intrinsic color difference of these types of stars.