The auto keystone correction of +-30° brings the picture always into the right shape, if the projector has to project up or down in a certain angle to the wall. Without any manual adjustment The VT47 is almost noiseless with its 28 db and therefore highly recommended for home cinema.
One of the new features is the manual wall colour correction, that adapts the colours so that the presentation always looks bright, even if you project on a chalk board or coloured wall. To save costs on the lamps the nec VT47 has an eco mode that extends the lamp life and in addition an off timer to shut down the projector automatically after a certain time.
