Επίσης: διάφραγμα (στη φωτογραφία), π.χ. ενός φακού
Image by D-Kuru/Wikimedia Commons, Creative Commons Attribution-Share Alike 4.0 InternationalImage by KoeppiK licensed under Attribution-Share Alike 4.0 International
Examples:
The smaller the aperture, the greater the depth of field
The wider the aperture, the more light enters the camera
