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Appendix
For lens unit GL-M2920ZG (2 to 3:1):
For lens unit GL-M2930SZG (2.9 to 5.5:1):
Projection screen size
(Diagonal length)
Approximate projection distance unit: ft (m)
For 4:3 aspect-ratio screens For 16:9 aspect-ration screens
Wide end Tele end Wide end Tele end
40" (approx. 101.6 cm) --------- --------- --------- 8.53 (2.60)
42" (approx. 106.7 cm) --------- 8.23 (2.51) --------- 9.96 (2.73)
50" (approx. 127.0 cm) --------- 9.74 (2.97) --------- 10.60 (3.23)
60" (approx. 152.4 cm) --------- 11.65 (3.55) 8.50 (2.59) 12.66 (3.86)
70" (approx. 177.8 cm) 9.09 (2.77) 13.55 (4.13) 9.84 (3.00) 14.73 (4.49)
80" (approx. 203.2 cm) 10.33 (3.15) 15.42 (4.70) 11.22 (3.42) 16.80 (5.12)
100" (approx. 254.0 cm) 12.83 (3.91) 19.23 (5.86) 13.94 (4.25) 20.90 (6.37)
150" (approx. 381.0 cm) 19.09 (5.82) 28.71 (8.75) 20.77 (6.33) 31.23 (9.52)
200" (approx. 508.0 cm) 25.33 (7.72) 38.16 (11.63) 27.59 (8.41) 41.54 (12.66)
240" (approx. 609.6 cm) 30.35 (9.25) 45.73 (13.94) 33.04 (10.07) 49.80 (15.18)
250" (approx. 635.0 cm) 31.59 (9.63) 47.64 (14.52) 34.38 (10.48) 51.87 (15.81)
300" (approx. 762.0 cm) 37.86 (11.54) 57.09 (17.40) 41.21 (12.56) 62.17 (18.95)
310" (approx. 787.4 cm) 39.11 (11.92) 58.99 (17.98) 42.59 (12.98) 64.24 (19.58)
320" (approx. 812.8 cm) 40.35 (12.30) 60.89 (18.56) 43.93 (13.39) ---------
330" (approx. 838.2 cm) 41.60 (12.68) 62.76 (19.13) 45.31 (13.81) ---------
340" (approx. 863.6 cm) 42.85 (13.06) 64.67 (19.71) 46.65 (14.22) ---------
350" (approx. 889.0 cm) 44.09 (13.44) --------- 48.03 (14.64) ---------
400" (approx. 1016.0 cm) 50.36 (15.35) --------- 54.86 (16.72) ---------
450" (approx. 1143.0 cm) 56.63 (17.26) --------- 61.65 (18.79) ---------
470" (approx. 1193.8 cm) 59.12 (18.02) --------- 64.37 (19.62) ---------
480" (approx. 1219.2 cm) 60.37 (18.40) --------- --------- ---------
500" (approx. 1270.0 cm) 62.89 (19.17) --------- --------- ---------
521" (approx. 1323.3 cm) 65.52 (19.97) --------- --------- ---------
Projection screen size
(Diagonal length)
Approximate projection distance unit: ft(m)
For 4:3 aspect-ratio screens For 16:9 aspect-ration screens
Wide end Tele end Wide end Tele end
40" (approx. 101.6 cm) --------- 14.83 (4.52) --------- 16.11 (4.91)
50" (approx. 127.0 cm) --------- 18.44 (5.62) --------- 20.05 (6.11)
60" (approx. 152.4 cm) --------- 22.05 (6.72) --------- 23.98 (7.31)
70" (approx. 177.8 cm) --------- 25.66 (7.82) 14.83 (4.52) 27.92 (8.51)
80" (approx. 203.2 cm) 15.55 (4.74) 29.30 (8.93) 16.93 (5.16) 31.86 (9.71)
100" (approx. 254.0 cm) 19.36 (5.90) 36.52 (11.13) 21.06 (6.42) 39.76 (12.12)
150" (approx. 381.0 cm) 28.87 (8.80) 54.59 (16.64) 31.43 (9.58) 59.45 (18.12)
200" (approx. 508.0 cm) 38.39 (11.70) 72.67 (22.15) 41.77 (12.73) 79.17 (24.13)
240" (approx. 609.6 cm) 45.96 (14.01) 87.14 (26.56) 50.07 (15.26) 94.91 (28.93)
250" (approx. 635.0 cm) 47.86 (14.59) 90.78 (27.67) 52.13 (15.89) ---------
260" (approx. 660.4 cm) 49.77 (15.17) 94.39 (28.77) 54.20 (16.52) ---------
270" (approx. 685.8 cm) 51.67 (15.75) 97.99 (29.87) 56.27 (17.15) ---------
280" (approx. 711.2 cm) 53.58 (16.33) --------- 58.33 (17.78) ---------
300" (approx. 762.0 cm) 57.38 (17.49) --------- 62.50 (19.05) ---------
350" (approx. 889.0 cm) 66.90 (20.39) --------- 72.83 (22.20) ---------
400" (approx. 1016.0 cm) 76.41 (23.29) --------- 83.20 (25.36) ---------
470" (approx. 1193.8 cm) 89.70 (27.34) --------- 97.70 (29.78) ---------
480" (approx. 1219.2 cm) 91.60 (27.92) --------- --------- ---------
500" (approx. 1270.0 cm) 95.41 (29.08) --------- --------- ---------
510" (approx. 1295.4 cm) 97.31 (29.66) --------- --------- ---------