close up filter.


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noob117

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Oct 16, 2006
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west
#1
hey guys/girls
how to calculate the magnification of a close-up filter?
say +4
Magnification = (Diopter x lens focal length) / 1000 ??????:confused:
is it 4 x(say)50mm/1000 = 0.2
the result is in? 0.2 wad?:think: :think: :think:


many thk :)
 

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