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Off-Axis Viewing Angle
Often the programme for a new education or training facility will try to maximize the number of seats for a given floor area. This will often result in people being seated quite far off the projection screen centreline. In a plan view of a room, this doesn't look that bad, it seems to be no worse than the seat the facility planner had during their last trip to the movies. In a movie theatre, this is less of a problem, as it's only the production credits or the english subtitles that are badly affected. In a learning environment, this distortion is unacceptable.
The text must be legible when viewed off-axis
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