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| Category | Tools | File Type | APK |
| Requirements | All Platforms | File Size | N/A |
| License | Free | Platform | Android |
| Offered By | N/A |
Focal Length Calculator Relate optical and mechanical parameters of simple lenses in order to ease integration into application assemblies. Select index from list of EO′s own optical substrates to help calculate focal lengths and principal points of any standard lens.
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