VValeryOchkov24-Ruby IV9 years agoNovember 6, 2016SolvedOne optic problem - one physic constant n16 replies5607 viewsTranslate AllAt which value n the optic focus of lens is a geometric focus too?See please two pictures and two Prime 3.1 sheets in attach. 2_20-5-mcdx.zip1_20-4-mcdx.zipOther