focal

Words Mentioning "focal"

accommodation

astigmatism

astigmia

bifocals

bureau of intelligence and research

closeup lens

confinement

diopter

dioptre

fisheye lens

f number

focal

focally

focal ratio

fresnel lens

graticule

hamartoma

hub

inr

jacksonian epilepsy

nonproliferation center

npc

restriction

reticle

reticule

sensory epilepsy

speed

stigmatism

stop number

wide-angle lens