focus
- noun
- /ˈfoʊkəs/
- Specialized
- The scientist adjusted the telescope to find the perfect focus on the distant star.
- prime focus
- focus at infinity
So it's like where the center focus of each lens is.
- So it's like where the center focus of each lens is.
- It's a wide angle, fast zoom with close focus distance and it's sharp.
Examples
-
Through the 2000s, NNPS school librarians sharpened their focus on student learning.
Academic text (2013) -
In optics, a lens can bend light to create a sharp focus on a specific point.
-
This concern will be the focus of my comments today.
-
That is our focus in looking at the market.
-
We know that students' learning is the central focus of good teaching.
Academic text (2011) -
First, the behavior of Southern white women is the central focus of this project.
Academic text (2013) -
So all the rays will come to a focus somewhere around there.
-
What is the focus of psychological health?
-
In the Greek hunt, the figures define the landscape and are the focus of our attention.
Academic text (1999) -
Originally, the showcases were conceived with a focus on the science unit being studied.
Academic text (1993)
Synonyms
A person or thing people notice most in a group
The point where rays of light come together after passing through a lens
A place in the body where an infection starts
Antonyms
Idioms
Compounds
How Central
Surface Forms
Etymology
Focus comes from an old Latin word focus meaning 'hearth' or 'fireplace', the warm center where light and heat come from. So, just like a home fire is a central point of light, a focus in optics is the central point where rays meet.