Eye

: This article refers to the sight organ. See Eye (disambiguation) for other usages.

Dynamic range

At any given instant, the retina can resolve a contrast ratio of around 100:1 (about 6 1/2 stops). As soon as your eye moves (saccades) it re-adjusts its exposure both chemically and by adjusting the iris. Hence, over time, you can resolve a contrast ratio of about 1,000,000:1 (about 20 stops).

Related Topics:
Contrast ratio - Stops

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