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quick light question


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#1 David Calson

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Posted 03 May 2009 - 08:51 PM

The closer you put the light to the diffusion frame, the harder/softer the shadows become? I'm going to guess softer, because the light is getting bigger, maybe who knows...
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#2 Matthew Parnell

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Posted 03 May 2009 - 09:05 PM

The larger the source of light the softer it is... if you fill a whole 4x4 diffusion frame with light you will get a softer source than only filling a 2x2 section of it. But also remember that the greater the distance between you subject and the light, the softer the light gets.

For example if you were to go within a couple kilometers of the sun, other than a bad sunburn, you would get an incredibly soft, wrappy light as opposed to the incredibly hard quality direct sunlight has here on earth.
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#3 David Mullen ASC

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Posted 03 May 2009 - 10:14 PM

The size of the diffusion frame or bounce surface, relative to the distance to the subject, determines how soft a light is. How close or far the light is to the diffusion frame or bounce surface only determines how much of that surface is filled, the more, and the more evenly, it is filled, the softer the light until the frame is filled completely.

So in general, you want to get the soft frame as close to the subject as possible but the light behind the frame far enough away to fill it evenly.
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