What does this means to a lens?


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mervlam

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Apr 26, 2002
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#4
if it's 1:1, 1cm on the object will be 1cm on the film. that's a life size reproduction.
 

#5
Originally posted by nEkOgOtCh


Ok... pardon my ignorance. So does that means that bigger the number the better for macro shots? :p
Nope, in fact it will be smaller. For your case, it's a 3.7x reduction - 3.7cm appears as 1cm on the film plane. If it's 6:1, 6cm will appear as 1cm, that's a smaller image. 1:1 will give you life size reproduction (1cm object = 1cm on the film), 2:1 will give you double life size and so on.

Regards
CK
 

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