ques about cokin filters


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jeanie

Senior Member
May 19, 2005
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#1
i managed to dig out some old cokin ND filters.

it was written ND 8x and ND 4x.

how many stops of light does the above 2 cuts?
 

jeanie

Senior Member
May 19, 2005
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#5
Remember it as follow:

ND nx
n = 2^f
...where f = number of stops of reduction

e.g. ND 64x

64 = 2^6
.... therefore 6 stops reduction

BC
very informative.thanks
btw, i pm you.u received?
 

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