 Senior Member
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Join Date: Oct 2007
Location: Dundee, Scotland
Posts: 3,552
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Great shots I love the log!
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Kit 1 Nikon D40x Nikon 18-55mm Nikon 55-200mm |
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My Compact/P&S: Sony DSC-W70 |
 Senior Member
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Join Date: Sep 2007
Location: Glasgow, UK
Posts: 1,608
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Quote:
Originally Posted by Goggs
Hi Grant
How do you get the filter factor I thought ND filters were ND2, ND4, ect.
this is something new to me.
Goggs.....
How do you get the filter factor I thought ND filters were ND2, ND4, ect.
this is something new to me.
Goggs.....
Only Hoya uses the filter factor # on there filters, e'g ND2 = 1 stop reduction,
ND4 = 2 stop, ND8 = 3 stop reduction.
B+W (my filters) code theirs with the optical density #, e.g my 6 stop reduction (1.8) has a filter factor of 64, my 10 stop (3.0) has a filter factor of 1024.
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Kit 1 Canon 5D MKII Canon 400mm f5.6 L Canon 70-200mm f4.0 L Canon 17-40mm f4.0 L |
Kit 2 Canon 50d |
 Senior Member
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Join Date: Apr 2008
Location: West Cork, Ireland
Posts: 7,578
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I really love numebr 1 - and don't mind what you say, I think it's a wall hanger! 
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Kit 1 Nikon D800 Nikkor 50mm f1.4 Nikkor 24-70mm f2.8 Nikkor 105 mm f2.8 macro Nikkor 70-200mm f2.8 Sigma 50-500mm F4-6.3 EX DG HSM Sigma 150-500mm F5-6.3 APO DG OS HSM Nikon 70-300mm AF f/4-5.6G Nikon 50mm f1.8 |
Kit 2 Nikon D700 |
Other Kit View my profile to see my other kit! |
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My Compact/P&S: Fuji finepix bridge |
