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.
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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
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
____________
Ged McMahon
Canon 5DMk3 | Canon 50D | 24-70L f/2.8 | 70-200L f/4 IS | 18-200mm go anywhere | 50mm f/1.8 | 100mm macro | 10-22mm f/3.5-4.5 | 580EX II Speedlight | Some strobes and stuff
http://www.gedmcmahon.com
http://bit.ly/dnc5cT
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 10:03pm.
Threadstarter
mercho no they are nd's, that's for your input
Originally Posted by Graeme Buckland
No Worries
they are more than likely the .9 and 1.8 then
Last edited by mercho; 04-05-2011 at 2:13pm.
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