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Diffusion Gels


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#1 anthony derose

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Posted 06 June 2007 - 11:41 AM

When you use diffusion gels for film (frost, black diffusion, white, etc) to get the desired look, do you expose for the light at key value and then put the gel on? Or shoud you expose for the light with the gel already on?

Thanks
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#2 David Regan

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Posted 06 June 2007 - 12:43 PM

Diffusion can add somewhat of a certain 'look' to an image, but the big factor is the amount of light output it cuts down. Therefore if you were to meter your subject without the diffusion, and then shoot at that stop with the diffusion on, your final result is going to be dimmer. If you want to ensure correct exposure with your light meter, do so with the diffusion on, unless you have memorized how much light will be lost from diffusion and just compensate when you set your stop on the camera.
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#3 Xavier Plaza

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Posted 06 June 2007 - 06:46 PM

I found this a long time a go... (2 years) :huh: perhaps (Lee people) they still use this in the website


hope helps you
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#4 Xavier Plaza

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Posted 06 June 2007 - 06:48 PM

sorry i didn't send you the complete info, there it's...
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