  We report the first measurement with no approximations of the full field of
tightly focused vector beams (NA up to $1.23$) across areas of $\sim
9-49\,\lambda ^2$. Prior to focusing, the structured laser light has a linear
or circular polarization state. The transverse components are extracted
directly from 12 interferograms using 4 step interferometry, while the
longitudinal component is extracted from the transverse fields with Gauss law.
Different structured beams are measured to demonstrate that the method works
for any field geometry. In the case of circular polarization we use vortex
beams to verify the appearance of spin-orbit coupling in the axial component.
The measurements are compared with simulations with normalized cross
correlations that yield mean values $\geq 0.8$, confirming good agreement.
