X-Ray Optics Calculator

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Image distance of two separated lenses

Two lenses formula

Parameter of interest
   Source-to-First Lens distance, m

   First Lens Focal distance, m

   Second Lens Focal distance, m

   Distance between lenses, m

   Back focal length with respect to the first lens, m

 

 
   Back focal length with respect to the second lens, m

 

 
   Image distance from the first lens, m

   Image distance from the second lens, m

 

 

Serguei Kuznetsov , IMT RAS, Chernogolovka, Russia.