Understand The Basics Of Exposure In Photography


show more Understanding exposure basics provides you with in-depth training on Photography. Taught by Brent Winebrenner as part of the Lighting for Photographers: Flash Exposure Fundamentals show less
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Understanding exposure basics

As you know, exposure is a delicate balancing act that requires the alignment of four distinctly different yet interrelated variables that include Illumination, Sensor Sensitivity, Shutter Speed, and Aperture. The first factor that we're going to consider is brightness or luminance. Luminance describes how much light--either from a natural source like the sun or an artificial source like a small strobe-- is falling on the subject. The second variable, Sensor Sensitivity, determines how much light is required to record an exposure.

The ISO setting determines the sensor's sensitivity to light. The setting controls the amount of amplification that is being applied to the digital data that is collected by the sensor. When you are shooting in low light, or with an underpowered flash, you can increase the numerical value of the ISO to increase the gain or amplification. As this gain increases, less illumination is needed to achieve the same exposure. Together, luminance and sensor sensitivity com...

Understanding exposure basics
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Understanding exposure basics provides you with in-depth training on Photography. Taught by Brent Winebrenner as part of the Lighting for Photographers: Flash Exposure Fundamentals

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