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Footcandles correlated to lights


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#1 Dan McCormick

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Posted 06 November 2006 - 09:48 AM

Hey

Is there anywhere on the internet that will correlate the footcandles a standard film light will give off (for example, a 2kW 10 feet from the subject will read xx footcandles).

Not of vital importance for the actual shoot, but it would help with lighting plans and figuring out what lights I need to get hold of.

Thanks

Dan McCormick
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#2 Jim Feldspar

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Posted 06 November 2006 - 10:11 AM

Hey

Is there anywhere on the internet that will correlate the footcandles a standard film light will give off (for example, a 2kW 10 feet from the subject will read xx footcandles).

Not of vital importance for the actual shoot, but it would help with lighting plans and figuring out what lights I need to get hold of.

Thanks

Dan McCormick


You can get all that, including footcandles at full spot vs. full flood at x distance, from the
manufacturer's spec. sheets.
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#3 John Hall

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Posted 06 November 2006 - 10:14 AM

You can sometimes find information on companies' websites.

Mole Richardson has Product Spec sheets for some of it's lights (including tungsten fresnels).

As does Kino-Flo.

That should give you a rough idea of the output of most lights you'll be using.

If you're willing to make the investment (a.k.a. cough up the cash) he ASC manual is the defacto bible on information about specific lights.
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#4 Dan McCormick

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Posted 06 November 2006 - 10:32 AM

Thanks

Thats perfect

Dan McCormick
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#5 Xavier Plaza

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Posted 07 November 2006 - 01:51 PM

hi Dan

you could try at arri website, www.arri.com , they have a interactive photometric calculator, tungten, hmi, fluorescent lights, then you could find interesting information available in footcandles or lux in differences situations (spot/flood)

best


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#6 Jonathan Bowerbank

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Posted 08 November 2006 - 02:46 PM

That photometric calculator is pretty awesome, if it is indeed accurate. It seemed so at least, when I put in a couple of setups that I'd done in the past with some Arri lights.

Edited by Jonathan Bowerbank, 08 November 2006 - 02:46 PM.

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#7 Michael Morlan

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Posted 08 November 2006 - 11:34 PM

I address the use of manufacturer's spec tables in helping choose lights in my article "Choosing the Right Light"

As an example, a classic Mole Baby 407 spec sheet may be found here.

Hope that helps.

Michael
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