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ND Filters for Bright sunny weather


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#1 Deji Joseph

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Posted 13 July 2011 - 09:43 AM

I'm shooting with a DSLR in bright sunny weather. I did a test the other day using an ND 8 and ISO 100 and found my shots still over exposed. What ND would you recommend?

Cheers

Dj
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#2 Adrian Sierkowski

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Posted 13 July 2011 - 11:10 AM

What F Stop were you shooting at? And what Shutter speed (for stills?)

For 100 ASA at 1/00th of a second exposure time you should've been @ an F16 in bright sun, give or take. For 1/50th (48th) of a second you'd be around an F22 @ 100asa.. That being the case, I'd recommend an ND.9 to 1.2 depending to drop down either 3 stops to an 8 or 4 stops to a 5.6; depending. Also sometimes I'll use a ND.9 and a Pola to pop out the skies a bit or kill reflections which also drops down your exposure.
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#3 Deji Joseph

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Posted 13 July 2011 - 08:09 PM

What F Stop were you shooting at? And what Shutter speed (for stills?)

For 100 ASA at 1/00th of a second exposure time you should've been @ an F16 in bright sun, give or take. For 1/50th (48th) of a second you'd be around an F22 @ 100asa.. That being the case, I'd recommend an ND.9 to 1.2 depending to drop down either 3 stops to an 8 or 4 stops to a 5.6; depending. Also sometimes I'll use a ND.9 and a Pola to pop out the skies a bit or kill reflections which also drops down your exposure.


I was shooting video at 1/50th, 25fps at F4. Im thinking of using getting a Vari-ND now but I am not sure if it wont vignette at 17mm with a UV, Polar and Vari-Nd on the front element. I'm using a 7D by the way
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