Words / B2

AP-uh-ch-uh/ˈæpətʃə/

An aperture is an opening, especially the adjustable opening in a camera lens that controls light: aperture f/8; a narrow aperture. An opening is everyday; f-number / f-stop is the photography measure; slit is a physics twin. Give the aperture (f-number) in the photography method, then the shutter time. Mix-up: aperture vs apartment; appetite; do not write aperture for a door unless the source uses the word.

Meaning

An opening, especially the adjustable opening in a camera lens that controls light.

Examples

• “Give the aperture (f-number) in the photography method, then the shutter time.”
• “Aperture in the optics practical is a named slit width, which is the physics sense — still quote millimetres.”

Good to know

aperture f/8; a wide / narrow aperture; aperture priority. Close: opening / f-stop / slit. Trap: apartment / appetite. Media, DT, and physics. An opening that controls light — quote the f-number or the millimetres.

Near in meaning

opening, f-stop, slit

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