Magnetic field vector obtained from the observations recorded on 14 and 16 November 2010 with VTT/TIP-2. First and Second row of panels display the magnetic vector obtained on 14 and 16 November 2010, respectively. a)/e) Magnetic field strength B, b)/f) gradient of the magnetic field strength with respect to log τ, (ΔB/ Δlog τ)_0.0,−2.3; c)/g) inclination angle, γ′, of the magnetic field vector and d)/h) azimuth direction, φ′, of the magnetic field vector. Both γ′ and φ′ are in the solar reference frame. The zero value of φ′ corresponds to the normal to the line of symmetry (line connecting the geometrical center of sunspot to the solar disk center).