4.17Using a Light Meter to Maintain Atmosphere

This month I want to share a technique I have developed over the years to utilize a reflected light meter to maintain a consistency of fog or atmosphere in a location over time.

Many cinematographers like to use fog or haze to help add atmosphere and reduce contrast. Maintaining a consistent level of atmosphere, however, can be an enormous challenge. Back in the stone ages, when I was a gaffer, I developed a methodology for maintaining that consistency with excellent accuracy.

Since fog or haze adds particulates in the air that reflect and/or refract light, the way to maintain the proper level of atmosphere is to measure that scattering of light. I would do this by placing a black flag in an unused ...

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