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                                                              komparashon di lčns hol i bol


                             

 

 

 

                                                  

 

                                                            Rayonan di lus stret (loodrecht) riba e lčns "bol" ta pasa dor di e fokůs (branpunt).
                                                            Un lčns "bol" tin un fokůs real.

 

 

                                       

 

                                                            Rayonan di lus stret (loodrecht) riba e lčns "hol" ta plama.
                                                            Un lčns "bol" tin un fokůs virtual. E lus ta pasa do di e fokůs.
                                                            Bo por hańa e fokůs virtual dor di siguí e rayonan di lus manera
                                                            indiká den e pintura aki bou.   (pasa ku bo pointer riba e pintura)