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Aperture affects color?


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#1 Joshua Csehak

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Posted 28 June 2018 - 08:30 AM

In the July 2018 AC, Jayson Crothers says, "If you open up to a T4 or T5.6, you end up losing detail and color in the fire, so a T8 is usually the widest I'll shoot on the burn stage..."

 

I don't think I've ever noticed a change in aperture affecting the color. Can anyone explain this to me?


Edited by Joshua Csehak, 28 June 2018 - 08:30 AM.

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#2 Mark Dunn

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Posted 28 June 2018 - 09:08 AM

It's not a change of aperture per se that has an effect- it's the change in exposure. Overexposed flame will look washed out. So if he's adding any light, he's lighting to f8.


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#3 Macks Fiiod

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Posted 28 June 2018 - 10:16 AM

Yeah, the more light a source has, the more blown out or desaturated it can get.


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#4 Joshua Csehak

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Posted 29 June 2018 - 09:26 AM

But he could just throw an ND on it.

 

I get losing detail, since with a shallower DoF more of the fire will be blurry, but I don't know, I'm not convinced he's talking about exposure.


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#5 Mark Dunn

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Posted 29 June 2018 - 09:32 AM

I can't read his mind, but I don't think he means "detail" as in greater DoF- he's referring to gradation of colour and density which would be lost if overexposed. DoPs sometimes use qualitative terms- they're artists as well as technicians.


Edited by Mark Dunn, 29 June 2018 - 09:32 AM.

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