実じっ効こう感かん度ど

noun

effective sensitivity; functional sensitivity

Technical term used mainly in photography and imaging to describe the practical light sensitivity of a film or sensor, as opposed to its nominal rating.

• このフィルムの実じっ効こう感かん度どはISO400相そう当とうです。

  The effective sensitivity of this film is equivalent to ISO 400.

• デジタルカメラでは、実じっ効こう感かん度どを調ちょう整せいすることでノイズを抑おさえられる。

  With a digital camera, you can reduce noise by adjusting the effective sensitivity.