Photographs by Timothy S. Allen
Exploring the World with a Camera
Sunset on a Sonoma County Beach
Long Exposure Using Neutral Density (ND) Filters – Sonoma County Beaches, Sonoma County, CA, U.S.A. October 26, 2016
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Photographs by Timothy S. Allen 
Nice long exposure photo, Tim. Interesting colors. Share any details? – exposure time, f-stop, ISO, ND filter factor? Thanks.
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Thanks Rawls.
Here is the information:
f/ 9.0, 3.2 sec, ISO 100, 22mm on Tamron 16-300mm, Canon 70D. Altura ND filters – 3 stacked 2+4+8
I hope the filter information makes sense.
I flipped Lightroom CC’s neutral density filter on the top and then shaded it more magenta.
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Thanks, Tim. Yes, I get the filter factors. In f-stops these are 1 + 2 + 4 = 7 stops darker.
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You’re welcome. I’ll have to explore more of this f stop factors. I know it has something to do with doubling the f stops but not sure.
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Beautiful
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Thank you.
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