The center of interest or activity
schools are a focus of community life
The distance between the back of a lens and the image of an object at infinity
A camera focus that cannot be adjusted, typically used with a small-aperture lens having a large depth of field
A demographically diverse group of people assembled to participate in a guided discussion about a particular product before it is launched, or to provide ongoing feedback on a political campaign, television series, etc.
A focus of a beam of light, particles, etc., which is small enough to be considered as a point.
Deliberate slight blurring or lack of definition in a photograph or movie
(Of a group of people) consulted in a focus group; (of a product or issue) evaluated or discussed in a focus group.
An assistant to a film or television cameraman who is responsible for keeping the lens focused during filming
The point or distance at which a lens or optical instrument focuses light on a photographic film.
The use of small working groups within a school (rare).
The distance between the two extreme axial points behind a lens at which an image is judged to be in focus
Pay particular attention to
Adjust the focus of (a lens or one’s eyes)
Relating to or denoting a light bulb that is designed so that its beam is focused automatically when it is fitted inside a lamp, especially a vehicle headlamp
A device that focuses a camera or other piece of equipment automatically
submit only those snapshots that are in focus
the shots are slightly out of focus, which gives them an eerie quality