Back Lensopening Afrikaans بؤرة (كاميرا) Arabic Apertur Azerbaijani Апертура (оптыка) Byelorussian উন্মেষ Bengali/Bangla Obertura (diafragma) Catalan Blende (Optik) German Aperture English Apertura Spanish Ava (fotograafia) Estonian
In optics and photography, an aperture is a hole where light can pass through.