口径比こうけいひkoukeihi口こう径けい比ひ口こう径けい比ひShow answer(Space)Suspend(@)口こう径けい比ひ口こう径けい比ひkoukeihiNoun (common)Noun (common) (futsuumeishi)Noun (common)aperture ratio (inverse of the f-number); relative apertureRelated:Ｆナンバー口こう径けい比ひ口こう径けい比ひkoukeihiaperture ratio (inverse of the f-number)What does 口径比 mean in English?aperture ratio (inverse of the f-number); relative aperture(n)Search the picture dictionary for 口径比
