dttom Posted September 28, 2005 Posted September 28, 2005 I would like to know which factor(s) is(are) essential to find out a focal length between an object and a lens. And the distence between the object and the lens is known.
insane_alien Posted September 28, 2005 Posted September 28, 2005 focal legnth = 1/lens power (in dioptres) dioptres = 1/focal legnth
swansont Posted September 28, 2005 Posted September 28, 2005 I would like to know which factor(s) is(are) essential to find out a focal length between an object and a lens. And the distence between the object and the lens is known. The image distance would let you use the thin lens formula
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