H.E.S.S. VHE γ-ray surface brightness (cm^-2   s^-1   deg^-2) of Vela X integrated between 0.75 TeV and 70 TeV and 0.07° Gaussian smoothing width. The 0.07° PSF achieved with the X_eff method applied in this analysis is also shown for comparison. The circles are drawn with radii of 0.8° and 1.2°, respectively, around the central position of the VHE γ-ray emission. The white star marks the position of the pulsar PSR B0833-45.