Nikon CFI Microscope Eyepieces — Widefield & High Eyepoint Oculars Nikon microscope eyepieces magnify the intermediate image while defining field of view and viewing comfort. As part of Nikon’s CFI (Chromatic Aberration Free Infinity) optical system, these eyepieces provide wide, flat fields for mod
Eyepieces work together with objectives to determine total magnification, field of view, and viewing ergonomics — for example, a 10× eyepiece with a 40× objective yields 400× total magnification.