EB-720 10 Projection distance formula Minimum (Wide) a (mm) = Projection screen size (inch) ×6.6253 - 13.35 b (mm) = Projection screen size (inch) ×2.6031 - 62.67 c (mm) = Projection screen size (inch) ×17.8431 - 62.67 Maximum (Tele) a (mm) = Projection screen size (inch) ×8.9442 - 13.35 b (mm) = Projection screen size (inch) ×6.1812 - 62.67 c (mm) = Projection screen size (inch) ×21.4212 - 62.67 Projection distance formula Minimum (Wide) a (mm) = Projection screen size (inch) ×7.0228 - 13.35 b (mm) = Projection screen size (inch) ×4.1055 - 62.67 c (mm) = Projection screen size (inch) ×17.5675 - 62.67 Maximum (Tele) a (mm) = Projection screen size (inch) ×9.4808 - 13.35 b (mm) = Projection screen size (inch) ×7.8983 - 62.67 c (mm) = Projection screen size (inch) ×21.3603 - 62.67 Projection distance formula Minimum (Wide) a (mm) = Projection screen size (inch) ×7.2181 - 13.35 b (mm) = Projection screen size (inch) ×4.9115 - 62.67 c (mm) = Projection screen size (inch) ×17.3641 - 62.67 Maximum (Tele) a (mm) = Projection screen size (inch) ×9.7444 - 13.35 b (mm) = Projection screen size (inch) ×8.8097 - 62.67 c (mm) = Projection screen size (inch) ×21.2623 - 62.67