focal length
focal length
Definition
focal length
noun
the distance from the optical center of a lens or curved mirror to the point where light rays from a very distant object converge
focal length
Usage Examples
Browse dictionary entries near focal length
- focal infection
- focal
- focaccia
- fob
- foamy
- foamflower
- foam rubber
- foam
- foal
- fo'c'sle
- focal point
- focalize
- Foch
- focus
- focus group
- FOD
- fodder
- foe
- foehn
- foeman
