Having numerous lenses that have matching things in the same airplane
aided by the lower things all in similar airplane; -- stated of sets of eyepieces therefore mounted they is interchanged without varying the main focus of the instrument (as a microscope or telescope) with that they are utilized.
Using The lower points of interest all-in the exact same jet: said of interchangeable eyepieces, for microscopes or telescopes, therefore mounted that whichever a person is used the focus remains the exact same. See eyepiece.
Definition for "parfocal"
Having numerous lenses that have matching things in…
A theory or system of social reform which contemplates a complete reconstruction of society with a more just and equitable distribution of property and labor In popular usage the term is often employed to indicate any lawless revolutionary social scheme See Communism Fourierism Saint Simonianism forms of socialism...