Original: In addition to giving a wider angle of view , the image produced by a wide-angle lens is more susceptible to perspective distortion than that produced by a normal lens , because they tend to be used much closer to the subject .
Simplified: That way , an 18mm lens mounted on a digital camera of this type gives an angle of view of the 28mm wide-angle lens , namely 75 degrees , for a multiplier of 1.5 .