| What size lens do I need??? |
Chart |
2" X 2" double frame 35 mm slides aperture 1.35"W X .902"H WHR: 1.49 |
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| Lens Focal Length |
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| 40" | 50" | 60" | 70" | 84" | 96" | 9' | 10' | 12' | 14' | 16' | 18' | 20' | |
| 1" | 2.6 | 3.3 | 3.9 | 4.5 | 5.4 | 6.1 | 6.8 | 7.5 | 9.1 | 10.5 | 12.0 | 13.5 | 15.0 |
| 1.4" | 3.7 | 4.6 | 5.4 | 6.3 | 7.5 | 8.5 | 9.6 | 10.6 | 12.7 | 14.8 | 16.8 | 18.9 | 21.0 |
| 2" | 5.3 | 6.5 | 7.7 | 9.0 | 10.7 | 12.2 | 13.7 | 15.2 | 18.1 | 21.1 | 24.0 | 27.0 | 30.0 |
| 3" | 7.9 | 9.8 | 11.6 | 13.5 | 16.1 | 18.3 | 20.5 | 22.7 | 27.2 | 31.5 | 36.1 | 40.5 | 44.9 |
| 4" | 10.6 | 13.0 | 15.5 | 18.0 | 21.4 | 24.4 | 27.3 | 30.3 | 36.2 | 42.2 | 48.1 | 54.0 | 59.9 |
| 5" | 13.2 | 16.3 | 19.4 | 22.4 | 26.8 | 30.5 | 34.2 | 37.9 | 45.3 | 52.7 | 60.1 | 67.5 | 74.9 |
| 5.5" | 14.5 | 17.9 | 21.3 | 24.7 | 29.4 | 33.5 | 37.5 | 41.7 | 49.8 | 58.0 | 66.1 | 74.3 | 82.4 |
| 6" | 15.8 | 19.5 | 23.2 | 26.9 | 32.1 | 36.6 | 41.0 | 45.5 | 54.3 | 63.2 | 72.1 | 81.0 | 89.9 |
| 6.5" | 17.1 | 21.2 | 25.2 | 29.2 | 34.8 | 39.6 | 44.4 | 49.2 | 58.9 | 68.5 | 78.1 | 87.8 | 97.4 |
| 7" | 18.5 | 22.8 | 27.1 | 31.4 | 37.5 | 42.7 | 47.8 | 53.0 | 63.4 | 73.8 | 84.1 | 94.5 | 104.9 |
| 7.5" | 19.8 | 24.4 | 29.0 | 33.7 | 40.2 | 45.7 | 51.3 | 56.8 | 67.9 | 79.0 | 90.1 | 101.3 | 112.4 |
| 8" | 21.1 | 26.0 | 31.0 | 35.9 | 42.8 | 48.7 | 54.7 | 60.6 | 72.5 | 84.3 | 96.2 | 108.0 | 120.0 |
| 8.5" | 22.4 | 27.7 | 32.9 | 38.2 | 45.5 | 51.8 | 58.1 | 64.4 | 77.0 | 89.6 | 102.2 | 114.8 | 127.4 |
| 9" | 23.7 | 29.3 | 34.8 | 40.4 | 48.2 | 54.8 | 61.5 | 68.2 | 81.5 | 94.8 | 108.2 | 121.5 | 134.8 |
| 9.5" | 25.1 | 30.9 | 36.8 | 42.6 | 50.9 | 57.9 | 64.9 | 72.0 | 86.0 | 100.1 | 114.2 | 128.3 | 142.3 |
| 10" | 26.4 | 32.6 | 38.7 | 44.9 | 53.5 | 60.9 | 68.3 | 75.8 | 90.6 | 105.4 | 120.2 | 135.0 | 149.8 |
| 12.5" | 33.0 | 40.7 | 48.4 | 56.1 | 66.9 | 76.2 | 85.4 | 94.7 | 113.2 | 131.7 | 150.2 | 168.8 | 187.3 |
| 15.5" | 40.9 | 50.5 | 60.0 | 69.5 | 83.0 | 94.4 | 105.9 | 117.4 | 140.4 | 163.3 | 186.3 | 209.3 | 232.2 |
| 20" | 52.8 | 65.1 | 77.4 | 89.8 | 107.1 | 121.9 | 136.7 | 151.5 | 181.1 | 210.8 | 240.4 | 270.0 | 299.7 |
