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3 results for “shutter”

Formulae (3)

EV = \log_2\!\left(\frac{N^2}{t}\right)

Combines aperture and shutter speed into one exposure figure.

N^2 \propto \frac{ISO}{t}

Aperture, shutter and ISO trade off to keep exposure constant.

b = v \times t

Blur streak length from subject speed and shutter time.