  We argue that a genuine image of the black hole viewed by a distant observer
is not its shadow, but a more compact event horizon image probed by the
luminous matter plunging into black hole. The external border of the black hole
shadow is washed out by radiation from matter plunging into black hole and
approaching the event horizon. This effect will crucially influence the results
of future observations by the Event Horizon Telescope. We show that
gravitational lensing of the luminous matter plunging into black hole provides
the possibility for visualization of the event horizon. The lensed image of the
event horizon is formed by the highly red-shifted photons emitted by the
plunging matter very near the black hole event horizon and detected by a
distant observer. The resulting event horizon image is a gravitationally lensed
projection on the celestial sphere of the whole black hole event horizon
sphere. Seemingly, black holes are the unique objects in the Universe which may
be viewed by distant observers at once from both the front and back sides.
