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Thread: B&W Filters

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    Member Graeme Buckland's Avatar
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    B&W Filters

    I have a B&W 3 stop and a B&W 6 stop grad filters, my silly question is, is the 3 stop a ND 3 and the 6 stop a ND 6, if not could someone please let me know what the are.
    Canon 5D Mark 11
    Canon 30D
    Canon 50mm 1.8
    Canon 16-35 L series
    Canon 24-105 IS L series
    Canon 100-400 IS L series

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    Hi Graeme,
    I always thought a ND3 is a one-stop filter, a ND6 is a two-stop filter (because cameras tend to go up in 1/3 stop intervals). So ND4 = 1.33 stops, ND5 = 1.66 stops, etc. Using my presumption, a 3-stop filter would be ND9 and 6-stop filter would be ND18!
    I'm no expert so maybe someone can correct me on that...
    Ged
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    You sure they aren't GRAD ND .3 (1 Stop) and .6 (2 stop) filters?

    A 3 Stop Filter is a ND .9 and a 6 Stop Filter is a ND 1.8, which they make in ND's, but not sure about Grads?
    Last edited by mercho; 03-05-2011 at 8:03pm.
    Cheers, Brad




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    Graeme Buckland's Avatar
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    mercho no they are nd's, that's for your input

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    Quote Originally Posted by Graeme Buckland View Post
    I have a B&W 3 stop and a B&W 6 stop grad filters
    Quote Originally Posted by Graeme Buckland
    mercho no they are nd's, that's for your input
    No Worries

    they are more than likely the .9 and 1.8 then
    Last edited by mercho; 04-05-2011 at 12:13pm.

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