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Used primarily in high efficiency illumination systems, condensers offer superior aberration correction. We provide these in low f/#’s for higher light gathering efficiency in condensing, projecting, and other illumination applications. AR-Glas® (soda lime) has an index of refraction of 1.515.
| Picture or Slide Size | Diameter (mm) | F.L. (mm) of Condenser to use |
| 8mm | 19 to 44 | 13 to 76 |
| 16mm | 25 to 44 | 25 to 76 |
| 35mm | 51 to 76 | 76 to 102 |
| 1-1/4" x 1-5/8" | 60 to 89 | 76 to 127 |
| 2-1/4" x 3-1/4" | 114 to 127 | 140 to 178 |
| 2-1/2" x 4-1/2" | 152 to 178 | 229 to 254 |
Note: for #43-594 R2=84.125mm
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