Screen Size and Projection Distance
Standard Zoom Lens
F1.7-F1.9, f=28.0-33.6 mm
NORMAL Mode (4:3)
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| Picture (Screen) size |
| Projection distance [L] | Distance from the lens center | ||||||
Diag. [χ] | Width | Height | Minimum [L1] | Maximum [L2] | to the bottom of the image [H] | ||||||
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500'' (1270 cm) | 1016 cm | (400'') | 762 cm | (300'') | 17.9 m | (58' 7") | 21.4 m | (70' 4") | |||
300'' | (762 cm) | 610 cm | (240'') | 457 cm | (180'') | 10.7 m | (35' 2") | 12.9 m | (42' 2") | ||
270'' | (686 cm) | 549 cm | (216'') | 411 cm | (162'') | 9.6 m | (31' 8") | 11.6 m | (38') | ||
250'' | (635 cm) | 508 cm | (200'') | 381 cm | (150'') | 8.9 m | (29' 3") | 10.7 m | (35' 2") | ||
200'' | (508 cm) | 406 cm | (160'') | 305 cm | (120'') | 7.1 m | (23' 5") | 8.6 m | (28' 1") | ||
150'' | (381 cm) | 305 cm | (120'') | 229 cm | (90'') | 5.4 m | (17' 7") | 6.4 m | (21' 1") | ||
100'' | (254 cm) | 203 cm | (80'') | 152 cm | (60'') | 3.6 m | (11' 9") | 4.3 m | (14' 1") | ||
84'' | (213 cm) | 171 cm | (67'') | 128 cm | (50'') | 3.0 m | (9' 10") | 3.6 m | (11' 10") | ||
80'' | (203 cm) | 163 cm | (64'') | 122 cm | (48'') | 2.9 m | (9' 4") | 3.4 m | (11' 3") | ||
72'' | (183 cm) | 146 cm | (58'') | 110 cm | (43'') | 2.6 m | (8' 5") | 3.1 m | (10' 1") | ||
60'' | (152 cm) | 122 cm | (48'') | 91 cm | (36'') | 2.1 m | (7') | 2.6 m | (8' 5") | ||
40'' | (102 cm) | 81 cm | (32'') | 61 cm | (24'') | 1.4 m | (4' 8") | 1.7 m | (5' 7") |
χ: Picture size (diag.) (in/cm) |
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| The formula for picture size and projection distance | |||||||||
L: | Projection distance(m/ft) |
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L1: | Minimum projection distance (m/ft) |
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| L1 | (m) = 0.03571χ |
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L2: | Maximum projection distance (m/ft) |
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| L2 | (m) = 0.04286χ |
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H: | Distance from the lens center to the bottom of the image (cm/in) |
| H (cm) = |
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| [Feet/inches] |
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| L1 | (ft) = 0.03571χ / 0.3048 |
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| L2 | (ft) = 0.04286χ / 0.3048 |
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| H (in) = |
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STRETCH Mode (16:9) |
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| Picture (Screen) size |
| Projection distance [L] |
| Distance from the lens center | Adjustable range of | |||||||
| Diag. [χ] | Width | Height | Minimum [L1] | Maximum [L2] |
| to the bottom of the image [H] | image position [S] | |||||||
450'' (1143 cm) | 996 cm | (392'') | 560 cm | (221'') | 17.5 m | (57' 5") | 21.0 m (68' 11") | 19 cm | (7 23/64") | ±93 cm | (±36 49/64") | ||||
300'' | (762 cm) | 664 cm | (261'') | 374 cm | (147'') | 11.7 m | (38' 3") | 14.0 m (45' 11") | 12 cm | (4 29/32") | ±62 cm | (±24 33/64") | |||
250'' | (635 cm) | 553 cm | (218'') | 311 cm | (123'') | 9.7 m | (31' 11") | 11.7 m | (38' 4") | 10 cm | (4 5/64") | ±52 cm | (±20 27/64") | ||
225'' | (572 cm) | 498 cm | (196'') | 280 cm | (110'') | 8.8 m | (28' 9") | 10.5 m | (34' 6") | 9 cm | (3 43/64") | ±47 cm | (±18 25/64") | ||
200'' | (508 cm) | 443 cm | (174'') | 249 cm | (98'') | 7.8 m | (25' 6") | 9.3 m | (30' 8") | 8 cm | (3 17/64") | ±42 cm | (±16 11/32") | ||
150'' | (381 cm) | 332 cm | (131'') | 187 cm | (74'') | 5.8 m | (19' 2") | 7.0 m | (23') |
| 6 cm | (2 29/64") | ±31 cm | (±12 1/4") | |
133'' | (338 cm) | 294 cm | (116'') | 166 cm | (65'') | 5.2 m | (17') | 6.2 m | (20' 4") | 6 cm | (2 11/64") | ±28 cm | (±10 7/8") | ||
106'' | (269 cm) | 235 cm | (92'') | 132 cm | (52'') | 4.1 m | (13' 6") | 4.9 m | (16' 3") | 4 cm | (1 47/64") | ±22 cm | (±8 21/32") | ||
100'' | (254 cm) | 221 cm | (87'') | 125 cm | (49'') | 3.9 m | (12' 9") | 4.7 m | (15' 4") | 4 cm | (1 41/64") | ±21 cm | (±8 11/64") | ||
92'' | (234 cm) | 204 cm | (80'') | 115 cm | (45'') | 3.6 m | (11' 9") | 4.3 m | (14' 1") | 4 cm | (1 1/2") | ±19 cm | (±7 33/64") | ||
84'' | (213 cm) | 186 cm | (73'') | 105 cm | (41'') | 3.3 m | (10' 9") | 3.9 m | (12' 10") | 3 cm | (1 3/8") | ±17 cm | (±6 55/64") | ||
80'' | (203 cm) | 177 cm | (70'') | 100 cm | (39'') | 3.1 m | (10' 3") | 3.7 m | (12' 3") | 3 cm | (1 5/16") | ±17 cm | (±6 17/32") | ||
72'' | (183 cm) | 159 cm | (63'') | 90 cm | (35'') | 2.8 m | (9' 2") | 3.4 m | (11') |
| 3 cm | (1 11/64") | ±15 cm | (±5 57/64") | |
60'' | (152 cm) | 133 cm | (52'') | 75 cm | (29'') | 2.3 m | (7' 8") | 2.8 m | (9' 2") |
| 2 cm | (63/64") | ±12 cm | (±4 29/32") | |
40'' | (102 cm) | 89 cm | (35'') | 50 cm | (20'') | 1.6 m | (5' 1") | 1.9 m | (6' 2") |
| 2 cm | (21/32") | ±8 cm | (±3 17/64") | |
χ: Picture size (diag.) (in/cm) |
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| The formula for picture size and projection distance | |||||||||
L: | Projection distance(m/ft) |
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L1: | Minimum projection distance (m/ft) |
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| L1 | (m) = 0.0389χ |
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L2: | Maximum projection distance (m/ft) |
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| L2 | (m) = 0.04669χ |
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H: Distance from the lens center to the bottom of the image (cm/in) |
| H (cm) = 0.04151χ |
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S: | Adjustable range of image position (cm/in) |
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| S (cm) = ±0.20754χ |
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| [Feet/inches] |
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| L1 | (ft) = 0.0389χ / 0.3048 |
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| L2 | (ft) = 0.04669χ / 0.3048 |
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| H (in) = 0.04151χ / 2.54 |
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| S (in) = ±0.20754χ / 2.54 |
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Note
•Allow a margin of error in the value in the diagrams above.
•When the distance from the lens center to the bottom of the image [H] is a negative number, this indicates that the bottom of the image is below the lens center.
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