When using a normal screen (4:3) and projecting 16:9 image
Picture (Screen) size | Projection distance [L] | Distance from the lens center to | Adjustable range of | |||||
χ | Width | Height | Minimum [L1] | Maximum [L2] | the bottom of the image [H] | image position [S] | ||
Diag. [ ] |
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300 (762 cm) | 240 (610 cm) | 180 (457 cm) | 27 3 (8.3 m) | 31 7 (9.6 m) | 19 5/16 | (49 cm) | 4 1/2 | (11.4 cm) |
270 (686 cm) | 216 (549 cm) | 162 (411 cm) | 24 7 (7.5 m) | 28 5 (8.7 m) | 17 3/8 | (44 cm) | 4 3/64 | (10.3 cm) |
250 (635 cm) | 200 (508 cm) | 150 (381 cm) | 22 9 (6.9 m) | 26 4 (8.0 m) | 16 3/32 | (41 cm) | 3 3/4 | (9.5 cm) |
200 (508 cm) | 160 (406 cm) | 120 (305 cm) | 18 2 (5.5 m) | 21 0 (6.4 m) | 12 7/8 | (33 cm) | 3 | (7.6 cm) |
150 (381 cm) | 120 (305 cm) | 90 (229 cm) | 13 8 (4.2 m) | 15 9 (4.8 m) | 9 21/32 | (25 cm) | 2 1/4 | (5.7 cm) |
100 (254 cm) | 80 (203 cm) | 60 (152 cm) | 9 1 (2.8 m) | 10 6 (3.2 m) | 6 7/16 | (16 cm) | 1 1/2 | (3.8 cm) |
80 (203 cm) | 64 (163 cm) | 48 (122 cm) | 7 3 (2.2 m) | 8 5 (2.6 m) | 5 9/64 | (13 cm) | 1 13/64 | (3.0 cm) |
70 (178 cm) | 56 (142 cm) | 42 (107 cm) | 6 4 (1.9 m) | 7 4 (2.2 m) | 4 1/2 | (11 cm) | 1 3/64 | (2.7 cm) |
60 (152 cm) | 48 (122 cm) | 36 (91 cm) | 5 5 (1.7 m) | 6 4 (1.9 m) | 3 55/64 | (10 cm) | 29/32 | (2.3 cm) |
40 (102 cm) | 32 (81 cm) | 24 (61 cm) | 3 8 (1.1 m) | 4 2 (1.3 m) | 2 37/64 | (7 cm) | 19/32 | (1.5 cm) |
χ: Picture (Screen) size (diag.) (in/cm) | The formula for picture size and projection distance | |
L: Projection distance (ft/m) | [Feet/inches] | [m/cm] |
L1: Minimum projection distance (ft/m) | L1 (ft) = 0.02771χ / 0.3048 | L1 (m) = 0.02771χ |
L2: Maximum projection distance (ft/m) | L2 (ft) = 0.03206χ / 0.3048 | L2 (m) = 0.03206χ |
H: Distance from the lens center to the bottom of the image (in/cm) | H (in) = 0.16346χ / 2.54 | H (cm) = 0.16346χ |
S: Adjustable range of image position (in/cm) See page 47. | S (in) = ±0.0381χ / 2.54 | S (cm) = ±0.0381χ |
Note
•Refer to page 18 concerning “Projection distance [L]” and “Distance from the lens center to the bottom of the image [H]”.
•Allow a margin of error in the values in the diagrams.
Setup
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