We present the first determination of the near-infrared K-band luminosity function of field galaxies from a wide-field K-selected redshift survey. The best-fit Schechter function parameters are M~* = -23.12 + 5 log h, α = -0.91, and φ~* = 1.66 x 10~(-2)h~3 Mpc~(-3). We estimate that systematics are no more than 0.1 mag in M~* and 0.1 in α, which is comparable to the statistical errors on this measurement.
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