Setting up
Calculation formulas for projection distance by lens types
Names | Type | Through ratio | Aspect ratio | Projection distance formula | ||
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| 16:10 | LW | = 0.0395 x SD - 0.0744 | |
| Standard zoom lens | 1.8 - 2.4:1 | LT | = 0.0529 x SD - 0.0734 | ||
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| 16:9 | LW | = 0.0406 x SD - 0.0745 | |||
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| LT | = 0.0544 x SD - 0.0734 | ||
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0.8:1 | 16:10 | LW | = 0.0175 x SD - 0.0476 | |||
16:9 | LT | = 0.0180 x SD - 0.0476 | ||||
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| 16:10 | LW | = 0.0286 x SD - 0.0540 | |
1.3 - 1.8:1 | LT | = 0.0413 x SD - 0.0498 | ||||
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16:9 | LW | = 0.0294 x SD - 0.0540 | ||||
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| LT | = 0.0424 x SD - 0.0498 | ||
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| 16:10 | LW | = 0.0500 x SD - 0.0800 | |
2.4 - 4.0:1 | LT | = 0.0789 x SD - 0.0792 | ||||
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16:9 | LW | = 0.0513 x SD - 0.0800 | ||||
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| LT | = 0.0811 x SD - 0.0792 | ||
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| 16:10 | LW | = 0.0787 x SD - 0.1351 | |
3.8 - 6.0:1 | LT | = 0.1190 x SD - 0.1346 | ||||
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16:9 | LW | = 0.0809 x SD - 0.1351 | ||||
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| LT | = 0.1223 x SD - 0.1346 | ||
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| 16:10 | LW | = 0.1192 x SD - 0.3017 | |
5.8 - 8.1:1 | LT | = 0.1885 x SD - 0.2991 | ||||
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16:9 | LW | = 0.1225 x SD - 0.3017 | ||||
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| LT | = 0.1937 x SD - 0.2991 | ||
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| 16:10 | LW= | 0.0397 x SD - 0.0650 | |
| Standard zoom lens | 1.8 - 2.4:1 | LT= | 0.0524 x SD - 0.0638 | ||
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| 16:9 | LW= | 0.0408 x SD - 0.0650 | |||
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| LT= | 0.0539 x SD - 0.0638 | ||
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0.8:1 | 16:10 | LW= | 0.0184 x SD - 0.0476 | |||
16:9 | LT= | 0.0189 x SD - 0.0476 | ||||
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| 16:10 | LW= | 0.0300 x SD - 0.0540 | |
1.3 - 1.8:1 | LT= | 0.0433 x SD - 0.0498 | ||||
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16:9 | LW= | 0.0309 x SD - 0.0540 | ||||
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| LT= | 0.0445 x SD - 0.0498 | ||
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| 16:10 | LW= | 0.0524 x SD - 0.0800 | |
2.4 - 4.0:1 | LT= | 0.0828 x SD - 0.0792 | ||||
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16:9 | LW= | 0.0539 x SD - 0.0800 | ||||
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| LT= | 0.0851 x SD - 0.0792 | ||
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| 16:10 | LW= | 0.0827 x SD - 0.1351 | |
3.8 - 6.0:1 | LT= | 0.1249 x SD - 0.1346 | ||||
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16:9 | LW= | 0.0850 x SD - 0.1351 | ||||
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| LT= | 0.1284 x SD - 0.1346 | ||
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| 16:10 | LW= | 0.1252 x SD - 0.3017 | |
5.8 - 8.1:1 | LT= | 0.1979 x SD - 0.2991 | ||||
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16:9 | LW= | 0.1286 x SD - 0.3017 | ||||
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| LT= | 0.2034 x SD - 0.2991 | ||
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| 16:10 | LW | = 0.0370 x SD - 0.0650 | |
| Standard zoom lens | 1.8 - 2.4:1 | LT | = 0.0488 x SD - 0.0638 | ||
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| 16:9 | LW | = 0.0403 x SD - 0.0650 | |||
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| LT | = 0.0532 x SD - 0.0638 | ||
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0.8:1 | 16:10 | LW | = 0.0171 x SD - 0.0476 | |||
16:9 | LT | = 0.0186 x SD - 0.0476 | ||||
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| 16:10 | LW | = 0.0280 x SD - 0.0540 | |
1.3 - 1.8:1 | LT | = 0.0403 x SD - 0.0498 | ||||
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16:9 | LW | = 0.0305 x SD - 0.0540 | ||||
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| LT | = 0.0439 x SD - 0.0498 | ||
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| 16:10 | LW | = 0.0488 x SD - 0.0800 | |
2.4 - 4.0:1 | LT | = 0.0771 x SD - 0.0792 | ||||
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16:9 | LW | = 0.0532 x SD - 0.0800 | ||||
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| LT | = 0.0840 x SD - 0.0792 | ||
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| 16:10 | LW | = 0.0770 x SD - 0.1351 | |
3.8 - 6.0:1 | LT | = 0.1163 x SD - 0.1346 | ||||
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16:9 | LW | = 0.0839 x SD - 0.1351 | ||||
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| LT | = 0.1267 x SD - 0.1346 | ||
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| 16:10 | LT | = 0.1165 x SD - 0.3017 | |
5.8 - 8.1:1 | LT | = 0.1842 x SD - 0.2991 | ||||
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16:9 | LT | = 0.1270 x SD - 0.3017 | ||||
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| LT | = 0.2007 x SD - 0.2991 | ||
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Getting Started
ENGLISH - 7