ISO RATING Definition & Meaning

ISO rating

noun

photog a classification of film speed in which a doubling of the ISO number represents a doubling in sensitivity; for example, ISO 400 film requires half the exposure of ISO 200 under the same conditions. The system uses identical numbers to the obsolete ASA rating

Discover More

�y��vlog History and Origins

Origin of ISO rating¹

C20: from I nternational S tandards O rganization

Discover More

Example Sentences

Examples have not been reviewed.

Additionally, I am not bringing enough flash power to accommodate such a low ISO rating.

From

But of all its impressive stats, the one most amateur photographers will probably value is its maximum native ISO rating—a measure of how well the camera can shoot in dark environments without sacrificing image quality.

From

DFD has a current ISO rating of 4 within the Duncan City Limits.

From

While the 20.7-megapixel sensor appears unchanged, Sony’s raised its max ISO rating to an impressive 12,800 — the first among smartphones to reach that value.

From

Most cameras have a top ISO rating of at least 800, which is fine for normal indoor and outdoor use.

From

Browse