Aperture
Cupertino photo organizer
An aperture is an opening, gap, or hole—especially one that admits light.
The term appears most often in photography and optics, where aperture refers to the adjustable opening in a lens that controls how much light reaches the film or sensor: Widen the aperture for low-light conditions.
A larger aperture creates a shallower depth of field, blurring backgrounds.
The word extends to any narrow opening: light streaming through an aperture in the rocks.
Lens opening ratio
- lensLight-focusing curved glass
- exposureState of being unprotected
- depth of fieldZone of acceptable sharpness
- shutterHinged window covering
diaphragm · bokeh · iris · focal length · light meter · camera · stop · fast lens
Eye's pigmented disc
- diaphragmMuscle separating chest, abdomen
- pupilLearner or eye opening
- diameterDistance across through center
- telescopeInstrument magnifying faraway objects
microscope · objective · eyepiece · f-number · optical system · angular resolution · collimator · spectrometer
Unfilled space between
- holeAbsence in matter
- slitNarrow elongated opening
- crackNarrow break or attempt
- spaceUnoccupied area or interval
breach · cleft · fissure · orifice · interstice · passage · rift · chink
Learner or eye opening
- irisEye's pigmented disc
- eyeOrgan of sight
- dilationWidening of an opening
- constrictionTightening or narrowing action
retina · light sensitivity · ocular · sphincter · orifice · nostril · pore · stoma
Glass-fitted wall opening
- doorwayPassage into a room
- skylightWindow in a roof
- ventOpening for airflow
- slotNarrow slit for insertion
portal · embrasure · loophole · clerestory · oculus · fenestration · light well · arrow slit
f-stop
Lens opening ratio
- lensLight-focusing curved glass
- exposureState of being unprotected
- depth of fieldZone of acceptable sharpness
shutter · diaphragm · bokeh · iris · focal length · light meter · camera · stop · fast lens · diffraction
iris
Eye's pigmented disc
- diaphragmMuscle separating chest, abdomen
- pupilLearner or eye opening
- diameterDistance across through center
telescope · microscope · objective · eyepiece · f-number · optical system · angular resolution · collimator · spectrometer · interferometer
gap
Unfilled space between
space · breach · cleft · fissure · orifice · interstice · passage · rift · chink · crevice
pupil
Learner or eye opening
constriction · retina · light sensitivity · ocular · sphincter · orifice · nostril · pore · stoma · mouth
window
Glass-fitted wall opening
slot · portal · embrasure · loophole · clerestory · oculus · fenestration · light well · arrow slit · peephole
Apertureclosure
Sense of emotional resolution
blockage · obstruction · seal · occlusion · barrier
Aperturepinhole
Minute circular opening
f/22 · shutter speed · ISO
open, opener, opening, openings, openly, openness, reopen, reopening, overt