View Full Version : ND filter question
jakut
27th of May 2009 (Wed), 17:38
Hello. I have been trying to take smooth/blurred water flow picture. I have ND8 filter.
Problem is the only time I have is around noon/afternoon time, when the sunlight at its peak. I had lower my iso and exposure to the lowest level, but still too bright.
Any suggestion how can I do this shot with the above situation (daylight) ?
How about stacking up 2 ND filters, like ND4 and ND8 ?
Please help.
Thank you much.:D
ironchef31
27th of May 2009 (Wed), 17:43
Hey
Welcome
My initial thoughts were to say you should not stack the filters because it would diminish the image quality. But you are going for the fuzzy dreamy look anyways. So why don't you try it and post the results.
jrader
27th of May 2009 (Wed), 19:30
Sounds like the only option you have is to stack the filters. The only other suggestion is to wait until it's not a sunny day. The clouds act as a ND filter for the sun!
Good luck.
John
jacobsen1
27th of May 2009 (Wed), 20:39
how many stops is a ND8? Can you post some sample exposures? What camera are you using (does it have 50ISO)?
Basically, set the ISO to either 50 or 100. Set your aperture as small (big number) as it goes. If that doesn't work, stack ~10 shots in PS and set the opacity to 10% each. ;)
blackcap
27th of May 2009 (Wed), 21:18
Hello. I have been trying to take smooth/blurred water flow picture. I have ND8 filter.
Problem is the only time I have is around noon/afternoon time, when the sunlight at its peak. I had lower my iso and exposure to the lowest level, but still too bright.
Any suggestion how can I do this shot with the above situation (daylight) ?
How about stacking up 2 ND filters, like ND4 and ND8 ?
Please help.
Thank you much.:D
You can stack filters. Or get a strong one, like a 10-stop one from B+W.
jrader
27th of May 2009 (Wed), 23:51
how many stops is a ND8? Can you post some sample exposures? What camera are you using (does it have 50ISO)?
Basically, set the ISO to either 50 or 100. Set your aperture as small (big number) as it goes. If that doesn't work, stack ~10 shots in PS and set the opacity to 10% each. ;)
8=2^3, thus an ND8 cuts the amount of light by 1/8=1/2^3, or 3 stops.
John
pepzman
2nd of June 2009 (Tue), 22:10
I just took some at Alberta Falls in Rocky Mountain National Park in early May. The was still 4 feet of snow and it was about 1pm. I have a 2, 4 & 8 ND filter. I stacked them all using ISO 100 and had great luck with the shots. I used shutter speeds between 10 and 30 seconds and except for a couple where I slipped and touched the tripod while the shutter was open thay all turned out really well.
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