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Photonics Buyers' Guide / Fixed Focal Length Lenses

Here are 9 companies that sell

Fixed Focal Length Lenses

Glossary
  • focal length (f) The effective focal length (EFL) is the distance from the principal point to the focal point. The back focal length (BFL) is the distance from the vertex of the last lens to the second focal point. The front focal length (FFL) is the distance from...
optical lensfixed distanceopticsimagingfocal point
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