stop
A stop that is placed in an image or aperture plane to control the diameter of the field of view or the numerical aperture, respectively. It may be an iris diaphragm.
Synonyms: diaphragm
A stop that is placed in an image or aperture plane to control the diameter of the field of view or the numerical aperture, respectively. It may be an iris diaphragm.
Synonyms: diaphragm