Active region NOAA 11420 observed by HINODE/SOT/SP on February 18, 2012 between 11:08 and 12:04 UT. The ambiguity is resolved by our method. Left: Magnetic field vector, vertical component between −2040 and +2040, horizontal component maximum arrow length 1355 G. Middle: current density vector, vertical component between −64 and +64, horizontal component typical arrow length 5000 mA/m². Right: Lorentz force vector, vertical component between −448 and +448, horizontal component typical arrow length 800 mN/m². The spatial resolution was reduced by a factor 5 × 5 for paper file size purposes (color figure on-line).