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|| SportsShooter.com: Member Message Board

Exposure equals footcandles
 
Gary Mills, Photographer
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Culver | IN | USA | Posted: 10:22 AM on 11.22.06 |
| ->> I work for a prep/boarding school that is building a new indoor riding hall and equestrian center. I've been told it will be bright enough for video but I don't believe that will suit my minimum of iso 800, 500/sec @f2.8. My old Sekonic with footcandle readings disappeared decades ago. Is there a way to convert my desired settings to footcandles? Thanks. |
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Allan Campbell, Photographer, Assistant
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Portland | OR | | Posted: 10:49 AM on 11.22.06 |
->> A foot-candle equals about 10.74 lux or, for a rough conversion, multiply foot-candles by 10 to get lux.
Conversion from Lux to an exposure setting has many steps. Please check out this site for all of those steps http://johnlind.tripod.com/science/scienceexposure.html or of someone has a meter that still has a dial they could just turn it out quickly. |
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Mike Last, Student/Intern, Photographer
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London | Ontario | Canada | Posted: 10:56 AM on 11.22.06 |
->> Just took a reading with my Sekonic L-558.
1/500 @ f2.8 at iso 800
= 12 EV
Searching on Google showed that 12EV is equivalent to:
12EV = 10,240.00 LUX = 951.00 Footcandles.
Hope that's what you were looking for. |
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Jim Colburn, Photographer, Photo Editor
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Omaha | NE | USA | Posted: 11:42 AM on 11.22.06 |
->> 125 foot candles = 1/125th at f/3.5 at 320 ASA
Always has... |
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Gary Mills, Photographer
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Culver | IN | USA | Posted: 12:51 PM on 11.23.06 |
->> Thanks to everyone for their responses.
I'll share this info with architects.
Sincerely, |
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John Kavouris, Photographer
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Bartlett | IL | US | Posted: 8:08 PM on 11.23.06 |
| ->> The electrical engineer or lighting designer for the project should know this. It's something the manufacturer of the light fixtures can esily calculate. |
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