Aperture 601 Words You Need to Know to Pass Your Exam for GRE & SAT candidates used in real-life passages and authentic context together with synonyms and illustrations to practice reading and listening comprehension and expand your advanced vocabulary
/ˈæp.ə.tʃəʳ/ (noun)
Definition
(especially in photography) a small and narrow opening or hole through which light can enter into the camera, vent, crack, orifice, slit, gap, space
Example
Aperture controls the brightness of the image that passes through the lens and falls on the image sensor. It is expressed as an f-number (written as “f/” followed by a number), such as f/1.4, f/2, f/2.8, /f4, f/5.6, f/8, f/11, f/16, f/22, or f/32.
Changing the f-number changes the size of the aperture, changing the amount of light that passes through the lens. The higher the f-number, the smaller the aperture and the less light that passes through the lens; the lower the f-number, the larger the aperture and the more light that passes through the lens. For example, changing the aperture from f/4 to f/5.6 halves the amount of light passing through the lens and halves the brightness of the image that falls on the image sensor.
Source of example: https://imaging.nikon.com/
Parts of speech
Adjective: apertural
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