Film School: Noise vs ISO

'How to Light and Expose for Darkness' | Rob Ellis 'How to Light and Expose for Darkness' | Rob Ellis

Why the obvious response to low light – to raise the ISO – isn’t the best for clean digital image capture.

Rob Ellis goes through, step by step, how to use contrast ratio to achieve a scene which looks dark, but also looks correctly exposed

… and, in the process, reveals how, contrary to what one may expect, noise in the shadows can be reduced if lit for a lower ISO:

Gary Scaife concurs, with some handy dynamic range charts (via OBP):

Further Viewing

Rob Ellis’ video goes into contrast ratios – more on that topic here…

… and in this Contrast Ratio Workshop:

An intro to the technical basics of the exposure triangle, to capture the best possible image:

A roundup of tutorials on how to capture the best possible image, technically, using camera assist tools:

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