Four examples of z ≈ 1.47 (proto-)cluster galaxies for which the maximum rotation velocity V_max could be determined. In each row, the plots show from left to right: best-seeing i-band image from the Subaru HSC survey, ionized gas map as observed in Hα with VLT/KMOS, observed rotation velocity field, best-fit model rotation velocity field used for the determination of the intrinsic V_max, and fit residuals after subtracting the best-fit model from the observed velocity field. We note that the galaxy to the southeast of HSC-232978 (top panel, leftmost figure) is a foreground galaxy with a photometric redshift in the range 0.7 <  z_phot <  0.8, depending on the method, and undetected in the KMOS data.