Extinction-corrected Hα luminosity function at z ~ 0.62. The LF corrected for incompleteness is shown as black filled circles along with the best linear fit as a red solid line. The LF values before applying the incompleteness correction are included as open symbols with the best linear fit as a black solid line. For comparison the LF at z ~ 0 from Gallego et al. (1995; black dotted line) and the extinction-corrected LF at z ~ 0.84 from Villar et al. (2008; black dashed line) are also shown.