pancratic
/pænˈkrætɪk/
adjective
- Having the ability to adjust or vary; especially describing a lens that can change its focal length (a zoom lens).
- Modern pancratic eyepieces allow astronomers to change magnification smoothly.
- He preferred a pancratic telescope because it could adapt to both wide views and close-ups.
- The pancratic lens on the camera let the photographer zoom in on distant birds without moving.
Synonyms