the.com/aperture
the eye's diaphragm and the camera's borrowed trick for deciding what gets to blur
means An opening or hole, especially an adjustable one that controls how much light passes through a lens in a camera, telescope, or eye.
from From Latin 'apertura,' meaning an opening, from 'aperire,' to open or uncover — the same verb that gives us 'aperitif,' the drink that 'opens' a meal. English borrowed it in the 1600s, and it kept its literal sense of a gap or opening before optics claimed it for the precise hole that decides how much of the world your lens lets in.
- f-stop math
- smaller number means wider opening, more light
- depth control
- wide aperture isolates subject, narrow keeps all sharp
- human iris
- your pupil is a living, dilating aperture
- telescope power
- bigger aperture gathers more light, sees fainter stars
- bokeh source
- blade shape sculpts out-of-focus highlights into circles
aperture science — fictional company from the video game portal series, known for their experimental portal technology
aperture priority mode — camera exposure setting available on most modern dslr and mirrorless cameras since the 1980s