| 释义 |
f-stop
noun[ C ]
(alsof stop, F stop)uk /ˈefˌstɒp/ us /ˈefˌstɑːp/
a measurement of the aperture(= the size of the opening that allows in light) of a camera:
I typically overexpose my shots by one f-stop.
The scale on the meter shows the lens apertures, or f-stops, and the shutter speeds.
The lower the f stop the shallower the depth of field.
A small aperture (high f-stop) creates a deep depth of field, so both the statues and the building are in focus.
Confusingly, a low f-stop signifies a larger aperture and shallower depth of field.
Take your normal 50-mm lens and set it to its widest f-stop opening.
You can practise different combinations of F stop, focal length, and distance from the subject to see what works.
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