About Subject Brightness Range
What is SBR or Subject Brightness range? It is the difference in terms of stops between the darkest and brightest part of a scene. Another way to put it is that is the contrast range of a scene.
Determining the SBR is crucial under certain situations. This is because if the SBR is too great, details within the scene will either be too bright or too dark. Typically, the SBR should be 5 stops or less, in order for the details to be retained.
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