Focus vs Unfocus - What's the difference?
focus | unfocus |
(countable, optics) A point at which reflected or refracted rays of light converge.
(countable, geometry) A point of a conic at which rays reflected from a curve or surface converge.
(uncountable, photography, cinematography) The fact of the convergence of light on the photographic medium.
* {{quote-magazine, year=2013, month=July-August, author=
, magazine=(American Scientist), title= (uncountable, photography, cinematography) The quality of the convergence of light on the photographic medium.
(uncountable) Concentration of attention.
(countable, seismology) The exact point of where an earthquake occurs, in three dimensions.
(computing, graphical user interface) The indicator of the currently active element in a user interface.
(linguistics) The most important word or phrase in a sentence or passage, or the one that imparts information.
To cause (rays of light, etc) to converge at a single point.
To adjust (a lens, an optical instrument) in order to position an image with respect to the focal plane.
To concentrate one's attention.
To concentrate one’s attention.
To bring out of focus.
*{{quote-news, year=2007, date=October 14, author=Jack Pendarvis, title=Buried Alive, work=New York Times
, passage=Pancake writes: “If you can unfocus your eyes right — and Corey can — wading the creek is like walking the aisle of a Wal-Mart made for Corey, with all the price tags saying free.” }}
In transitive terms the difference between focus and unfocus
is that focus is to adjust (a lens, an optical instrument) in order to position an image with respect to the focal plane while unfocus is to bring out of focus.As a noun focus
is a point at which reflected or refracted rays of light converge.focus
English
(wikipedia focus)Noun
Catherine Clabby
Focus on Everything, passage=Not long ago, it was difficult to produce photographs of tiny creatures with every part in focus'.
Verb
- You'll need to focus the microscope carefully in order to capture the full detail of this surface.
- Focus on passing the test.
- If you're going to beat your competitors, you need to focus .
Usage notes
The spellings focusses'', ''focussing'', ''focussed'' are more common in Commonwealth English than in American English, but in both varieties they are less common than the spellings ''focuses'', ''focusing'', ''focused .Derived terms
* focus group * in focus * out of focusunfocus
English
Verb
citation